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Transcript
2016 Plant Portraits Complete List
www.goldmedalplants.org
The Pennsylvania Horticultural Society’s Gold Medal Plant Award program honors little-known and underused woody
plants of exceptional merit and promotes their use. Awards have been given to 149 plants since 1988. These pages
describe the Award winners; this year’s winners are highlighted. All are superb garden plants, and we hope you’ll find an
opportunity to use them in your garden or business.
For additional information, please feel free to contact The Pennsylvania Horticultural Society at 215.988.8800 or email
[email protected].
Abies koreana (Korean Fir) is a loosely pyramidal evergreen
tree identified by its short, plump needles that are green on
top with a silver-lined underside. Small dark-violet cones,
appearing in spring, mimic flowers at first glance. The Korean
Fir is more heat-tolerant than other Abies. Although useful as a
screen, it deserves a more respectable position as a specimen
or accent tree. Grows to 25’ H x 10’ W in acid soil. Prefers full
sun but will tolerate light shade. Hardy in zones 5 to 7. (2005)
Abies nordmanniana (Nordmann Fir), a disease and insect
resistant fir, is better adapted to the warm climate of the
Delaware Valley and the broader region the Gold Medal
program serves than other members of the genus. Rich,
darkgreen, and pyramidal in shape, this evergreen reaches
to 50’. Hardy in zones 5 to 7. (1994)
Acer buergerianum (Trident Maple) is a handsome small
tree whose maximum height of 25’ allows it a spot by the
street. Variable fall foliage color and drought tolerance also
recommend this underused species from Japan and eastern
China. Hardy in zones 5 to 8. (2000)
Acer griseum (Paperbark Maple) is a native of China
that has made itself at home in the American garden. This
aristocrat is a standout in the winter landscape at 20’-30’ high
with exfoliating cinnamon-red bark. Planted in rich, moist soil
in full sun, the Paperbark Maple is a great small shade tree
with no pest or disease problems. It is perfectly suited near the
house or in public areas. Hardy in zones 5 to 7. (1993)
Acer japonicum ‘Aconitifolium’ (Fernleaf Full Moon
Maple) is a dwarf selection with delicate, almost fern-like
foliage. It grows 8 to 10 feet tall and equally as wide. In spring,
the leaves emerge green and are deeply divided into 9 to 11
lobes. Leaves turn brilliant crimson red in the fall before falling
and revealing the multi-stemmed, mounded habit of the small
tree for winter interest. One of the best small trees for any
garden, it is best used as an accent plant in a garden, but can
be planted in groups as part of a low-growing shrub border or
as a screen. This tree is easily grown in average, well-drained
soils and prefers dappled afternoon sun. It is relatively disease
free. (2015)
Japanese Cutleaf Maples have long been garden favorites.
Acer palmatum var. dissectum ‘Tamukeyama’, selected in
the early 18th century, remains a best choice. Growing to 6’
with a 12’ spread in 20 years, this maple is a hardy, long-lived
specimen tree. Unlike many cutleaf maples, this cultivar retains
its red color through the heat of summer. Its dome shape and
twiggy habit provide winter interest. Hardy in zones 6 to 8. (1997)
Acer palmatum var. dissectum ‘Waterfall’ is a pest-free
Japanese Cutleaf Maple that is attractive in all seasons. Its
green leaves are larger and more deeply dissected than other
members of the dissectum group. Its cascading habit makes it
a knockout in the landscape. ‘Waterfall’ grows slowly to 12’
with an 18’ spread. Hardy in zones 5 to 8. (1999)
Acer triflorum (Three-flower Maple) is a small specimen
maple unrivaled for fall color. Growing to 25’ high with a 20’
spread, it will consistently put on a dazzling fall display in
yelloworange to flame-orange. It prefers acidic, moist, welldrained soil in partial shade but tolerates sun, shade, and
neutral soils. It has no pest or disease problems. Hardy in
zones 5 to 7. (1996)
Actaea simplex ‘Hillside Black Beauty’ (Dark-leaved
Bugbane) is most noted for its dark, deeply lobed foliage
that grows in large clumps each spring. The leaves usually
reach about 2.5 feet tall, but the flower stalks can reach up to
6 feet tall. Flowers are numerous and white with a pleasant
fragrance. Great for a shade garden or perennial border, this
herbaceous perennial does best when planted in groups. It
is easily grown in organically rich soils with medium moisture
and full to partial shade. Hillside Black Beauty has few pest or
disease problems and the common name, Bugbane, refers to
the bug-repelling properties of the plant. (2015)
Aesculus parviflora (Bottlebrush Buckeye) is a lowmaintenance deer-resistant shrub whose large white summer
flowers are set against a bold texture. Growing to 12’ with a
width of 15’ in moist soil, it prefers partial shade and acid soil.
Hardy in zones 4 to 8. (1998)
Aesculus pavia (Red Buckeye) is a native Buckeye that
blooms in May with red to coral panicles 3”-6” long. With no
pest or disease problems, this species is far more resistant
to leaf scorch than other Aesculus. Growing to 20’ with a 30’
spread, this is a great tree for residential gardens. Plant in full
sun and moist, well-drained soil. Hardy in zones 4 to 8. (1995)
Amsonia hubrichtii (Blue Star) was named “Perennial Plant
of the Year” by the Perennial Plant Association in 2011. This
species is truly distinctive and extraordinary, with clusters of
powder-blue flowers in April and May. It grows to a height and
width of 2 to 3 feet. In the fall, its golden-orange color rivals
the best trees and shrubs. This clump-forming herbaceous
perennial prefers full sun to partial shade and is native to the
central and northeastern United States. Additionally, it is deer
and disease resistant. Hardy in zones 5 to 8. (2014)
PHSonline.org
PHS Gold Medal Plant Award­—Plant Portraits—Page 2
Aronia arbutifolia ‘Brilliantissima’ (Red Chokeberry) is a
large 6’-8’ upright shrub that boasts brilliant red fall color as
well as lustrous dark-green summer foliage. White flowers and
red fall berries add to its appeal. Chokeberry will tolerate very
wet soil conditions but prefers moist acid soil and full sun.
Aronialooks best in a mass planting. Hardy in zones 4 to 9.
(2000)
Buxus sempervirens ‘Vardar Valley’ (Common Boxwood)
is a deer-resistant evergreen shrub that grows to 3’ high by 4’
wide in 15 years. A handsome addition to the foundation or
perennial border, its blue-green foliage and twisted branches
give this boxwood a unique appearance in the landscape.
Resistant to leaf miner. Plant in alkaline soil. Hardy in zones 5
to 8. (2002)
Betula nigra ‘Fox Valley’ Little King ™ (Little King River
Birch) is a wonderful dwarf river birch. Introduced in the early
1990s into the trade, this tree makes a hardy addition to any
home rain garden. Unlike the straight species that can often
grow out of proportion in a small landscape, Little King River
Birch stays small and compact, growing 8 to 10 feet tall and 9
to 12 feet wide. The tree has a pleasant mounded habit with
dark green disease-resistant foliage. In the fall, the tree turns
an eye-catching yellow before dropping its leaves to reveal the
tan and cinnamon colored bark underneath. Little King River
Birch does best in full sun to part shade and is very adaptable
to soil conditions. This species does not mind heavy clay soils
or occasional flooding, making it a great candidate for rain
gardens. It shows resistance to the bronze birch borer, as well
as to many other diseases that often affect birches. Prune this
tree in the summer after the foliage has fully developed. (2016)
Callicarpa dichotoma (Beautyberry) is noted for its
clusters of striking lavender-colored berries in September. A
deciduous shrub, 3’ to 5’ tall with graceful layered branches,
it grows rapidly, preferring full to part sun. Prune hard in the
spring to keep it neat. Plant in well-drained moderately fertile
soil. Hardy in zones 5 to 8. (1989)
Betula nigra ‘Cully’ Heritage® This River Birch is a superior
clone with larger, glossier leaves than the species. It is a
fastgrowing medium-size multi-stemmed tree, reaching 40’60’, with an oval to rounded habit, nice yellow fall color, and
very interesting creamy tan to white peeling bark. 'Heritage’
is a heattolerant native, loves wet sites, and is resistant to
leaf spot disease and the bronze birch borer. Planted as a
specimen tree in the border or against the foundation, it
prefers partial sun situations but will tolerate full exposure.
Hardy from zones 3b to 9. (1990)
Bignonia capreolata ‘Dragon Lady’ (Cross Vine) is an
exceptional evergreen self-clinging vine with dark-green
leaves that turn purple in winter. Attractive reddish trumpetshaped flowers decorate the plant in June and July. ‘Dragon
Lady’ is hardier and more floriferous than the species; its
distinctive characteristics include drought resistance, wet-site
tolerance, and attractiveness to hummingbirds and butterflies.
It has no serious pest problems. Prune this native after
flowering as needed. Grows 30’ H x 30’ W in part or full sun.
Hardy in zones 5 to 9. (2003)
Boxwood evokes images of stately gardens of yesterday.
Buxus ‘Green Velvet’ is the best choice for today’s gardens.
Growing to 3’ with a 3’-4’ spread, ‘Green Velvet’ is easily
maintained as a short border plant. It is tolerant of a broad
range of soil types. Grown in sun or light shade, this boxwood
retains its color through the winter—a real advantage in
northern gardens. Deer-resistant; disease-free. Hardy in
zones 5 to 9. (1997)
Buxus sempervirens ‘Dee Runk’ (Common Boxwood) is
an upright conical evergreen shrub with blue-green foliage.
Deerresistant and pollution-tolerant, ‘Dee Runk’ also adapts
well to full sun and poor soils. A reliable, stately choice for the
formal garden or foundations, as a specimen, or in containers,
it grows 10’ H by 3’ W in all light conditions. Hardy in zones 5
to 8. (2008)
Calycanthus floridus ‘Michael Lindsey’ (Carolina Allspice)
A unique native deciduous shrub with neat, attractive foliage.
Green in spring and summer, it turns a striking yellow in the
fall. Distinct, very fragrant flowers bloom in May and June;
the scent of fruit lures you to its reddish-brown 2” flowers. No
serious pest or disease problems. Use as a specimen plant
or in the shrub border. Adaptable to many soils and all light
conditions. Grows to 7’ H x 7’ W. Hardy in zones 4 to 9. Note:
This may be difficult to find in the nursery—try an internet
search for mail-order sources. (2005)
Camellia japonica ‘Korean Fire’ is a large evergreen shrub
with glossy dark-green foliage. Its large, flat, bright-red flowers
with yellow stamens bloom March through May. Considered
to be the hardiest of the japonica species, ‘Korean Fire’ has
survived temperatures of -12° F with no injury. No serious pest
problems. Plant in part sun, protected from winter winds. It
matures to 15’ H x 8’ W and is hardy in zones 6 to 9. (2003)
Campsis grandiflora ‘Morning Calm’ (Chinesen
Trumpetcreeper) is a modest-sized vine with salmonorange blooms from mid-July through mid-August. Ideal for
smaller gardens, ‘Morning Calm’ is well-mannered and more
floriferous than other Campsis. It grows 15’ H x 15’ W in full
sun. This noninvasive woody vine needs support and a spring
pruning for best bloom. Hardy in zones 6 to 9. (2002)
Carpinus japonica (Japanese Hornbeam) is a small
deciduous tree characterized by its fan-shaped branching
structure and wide-spreading rounded habit. Its exotic Asian
demeanor makes it a desirable under-story or small accent
tree. Carpinus japonica provides year-round interest. In the
spring, the tree is profusely adorned with thumb-size coneshaped nutlets in shades of cream, tan, and green; they turn
brown upon maturity and persist into fall. Its clean serrated
foliage is dark green in the summer and turns yellowish in
the fall. Grows 25’ H x 15’ W in full or part sun and is hardy in
zones 4 to 8. (2008)
Cephalotaxus harringtonii ‘Duke Gardens’ (Japanese
PlumYew) is an attractive evergreen shrub with darkgreen needles. An extremely deer-resistant alternative to
the common Yew,’Duke Gardens’ is identified by a more
disciplined upright habit than ‘Prostrata’ and is useful as a
foundation plant or in mass. It tolerates all light conditions
from shade to full sun and grows about 3’ H x 4’ W in zones 6
to 9. (2008)
PHSonline.org
PHS Gold Medal Plant Award­—Plant Portraits—Page 3
Cephalotaxus harringtonii ‘Prostrata’ (Japanese Plum
Yew) is an evergreen shrub widely tolerant of soil types. It
grows 3’ H by 12’ W with no pest or disease problems. A great
alternative to Japanese Yew, it’s deer resistant! Hardy in zones
6 to 9. (1994)
Cercidiphyllum japonicum ‘Morioka Weeping’(Weeping
Katsura Tree) is a graceful medium-size deciduous tree
with attractive blue-green foliage. This tree can be used as a
specimen or in a large mixed border. Grows 25’ H x 10’ W in 10
years, eventually reaching 40’ H. Hardy in zones 4 to 8. (2009)
Cercis canadensis ‘The Rising Sun’™ (Rising Sun Redbud)
is a novel addition to the native eastern redbud roundup.
Smallbut-showy rosy orchid flowers climb the naked branches
in early spring, attracting bees and butterflies. The distinctive
bark is smooth tan with a yellowish cast. Emerging heartshaped foliage is brilliant tangerine to apricot and reputed
to hold its color well into fall, surpassing other gold-leaved
redbuds. Heat tolerance, drought resistance, and cold
hardiness are other desirable attributes. Grows 10’- 20’ and
hardy in zones 5-8. (2012)
Clethra alnifolia ‘Hummingbird’ is a dwarf Summersweet
that displays full-size flowers on a compact 3’ plant. A fragrant
summer-blooming shrub, this American native is deer resistant
and is a vigorous spreader. Hardy from zone 4 to zone 9. (1994)
Clethra alnifolia ‘Ruby Spice’ is a pink-blooming
Summersweet that will not fade to white. Grown in moist soil,
it will delight gardeners with rich pink flowers in July. ‘Ruby
Spice‘ tolerates sun or shade. A stoloniferous shrub, growing
to 8’ in 10 years, this Clethra works well as a specimen or in
mass. Noserious pest or disease problems. Hardy in zones
4 to 9. (1998)
Cornus ‘Rutban’ Aurora® is a vigorous hybrid that offers
hope for Dogwood lovers. A white-flowering non-fruiting
selection from Rutgers University’s breeding program, this
cross is more resistant to leaf spot, canker, and borer than
Cornus florida. Aurora is highly adaptable to many garden
situations. Its upright habit supports a multitude of large white
blooms in mid-May. Grows to 20’. Hardy in zones 5 to 8. (1993)
Chamaecyparis obtusa ‘Nana Gracilis’ (Hinoki Cypress)
isn’t a new cultivar, but it is commonly under-used compared
to dwarf Alberta spruce. ‘Nana Gracilis’ grows upright and
slowly like dwarf Alberta spruce, but it is much more bugresistant, shade tolerant, and the perfect conifer for small
urban gardens. Hardy in Zones 4-8. (2013)
Cornus ‘Rutlan’ Ruth Ellen® is another non-fruiting product
of the Rutgers University’s Dogwood breeding program.
The flowering bracts are more distinct than Aurora’s and rest
on a low-spreading Cornus florida-type tree. Early in May,
a profusion of bloom begins that will last up to two weeks.
Like all the Rutgers hybrids, ‘Ruth Ellen’ has to date shown
resistance to dogwood anthracnose. Grows to 20’ in height by
22’ wide. Hardy in zones 5 to 8. (1993)
Chionanthus virginicus (American fringe tree) is a
deciduous American fringe tree that satisfies three current
popular consumer demands – compact size, infrequent bug
or disease trouble, and native to the United States. In a home
landscape, it will reach 12 to 20 feet tall at maturity, either
as a large, multi-stemmed shrub or pruned as single-stem
tree. Narrow, attractive fleecy white flowers appear in spring,
giving the tree its common name, “old man’s beard.” This
fairly adaptable tree does well in full sun to partial shade
when grown as an understory tree, and has reliable yellow fall
foliage. Hardy in Zones 4-9. (2014)
Cornus mas ‘Golden Glory’ (Cornelian Cherry Dogwood)
produces a show of vivid yellow flowers from mid-February
through March. ‘Golden Glory’ is an excellent small deciduous
tree, growing to 25’ high and 20’ wide in full or part sun. It
exhibits good resistance to pests and deer. This droughttolerant diehard has exfoliating bark and 1” cherry-red oblong
fruit that attracts birds. (The fruit is edible but is not very tasty
except in preserves.) ‘Golden Glory’ has a more upright habit
than other Cornus mas cultivars. It is a handsome addition to
most landscapes and is adaptable to different soil types. Hardy
from zones 4 to 7. (2001)
Cladrastis kentukea (C. lutea) (American Yellowwood) is
a North American native plant. When planted in full sun, it is
broadly adaptable and long-lived. In late May to early June,
8”- 14” long pendulous white flowers adorn this pest-free tree.
Prune it in summer to avoid excessive “bleeding.” Hardy from
zone 4b to zone 8. (1994)
Cornus officinalis ‘Kintoki’ (Japanese Cornel Dogwood)
produces abundant clusters of radiant yellow flowers from
March through April, blooming two weeks earlier than Cornus
mas. Attractive exfoliating gray, brown, and orange bark
develops with age. Reddish-purple, large, cherry-like, edible
berries form by September. Fifteen feet high and just as wide,
it is smaller than the species and puts on a spectacular display
in full sun or partial shade. Hardy in zones 5-8. (2012)
Clematis viticella ‘Betty Corning’ (Italian Clematis) is a
vigorous woody vine with finely textured foliage and nodding
lavender flowers from July through August. Plant it in full sun.
It grows to 6’ H by 10’ W and has no pest or disease problems.
Maintenance is limited to a spring pruning to 4’. Quite
droughtresistant. Hardy from zone 4 to 8. (1992)
Clethra alnifolia ‘Compacta’ (Summersweet) Also know
as ‘Tom’s Compact’ this superior variety displays darker,
glossier leaves and a more compact, denser growth habit than
other Clethra alnifolia cultivars. ‘Compacta’ is also hardier
and more floriferous. A native to South Eastern U.S., it’s also
lowmaintenance and moderately deer-resistant. Uses include
the foundation, border, in mass, the shady container, and the
naturalized garden. It’s best planted in part sun but it’s tolerant
of all light conditions. ‘Compacta’ grows about 3.5’H x 4’W
and prefers well-drained organic soil. Hardy in zones 4 to 9. (2010)
Cornus sanguinea ‘Midwinter Fire’ (Bloodtwig Dogwood)
This large deciduous shrub spreads by suckers, producing a
dense clump. In the fall, its green leaves turn greenish-purple
and then drop to reveal extraordinarily beautiful stems. These
stems produce an intensely bright display of yellow, orange,
and red hues from late fall to early spring, especially when
placed in front of a dark backdrop. This is a truly superior
winter-interest plant. Full sun and a hard spring pruning will
produce the best stem colors. Abundant clusters of white
flowers appear in mid- May. Urban-tolerant and adaptable to
any soil conditions except wet, ‘Midwinter Fire’ can be used in
the shrub border, in masses, and in winter-interest containers.
It grows about 8’H x 10’W. Plant it in full or part sun. Hardy in
zones 4 to 7. (2011)
PHSonline.org
PHS Gold Medal Plant Award­—Plant Portraits—Page 4
Cornus sericea ‘Silver and Gold’ (Redosier Dogwood)
is named for its yellow twigs in winter and white-variegated
leaves in summer. This shrubby dogwood will grow to 7’. It
masses nicely, and the white spring flowers make it a great
four-season plant. Plant it in full to part sun. It tolerates all
soil conditions, including wet sites. When contrasted with
evergreens it creates a beautiful winter landscape. Hardy in
zones 2 to 7. (1990)
Cornus Venus™ (Dogwood) An improved dogwood hybrid
with superb resistance to anthracnose and powdery mildew,
Venus™ explodes in early spring with large (6”) pure-white
blooms with green centers. This Rutgers introduction has clean
foliage and a fast-growing, full, low-branching habit. Cornus
Venus™ is part C. kousa × nuttalli (the Pacific Dogwood) and
part C. kousa. Plant this cold-hardy creation as a specimen in
good welldrained soil. Grows 25’ high by 25’ wide in full or
part sun. Hardy in zones 4 to 8. (2007)
Cotinus coggygria ‘Royal Purple’ (Royal Purple
Smokebush) adds great color and depth to a garden all
season long. Foliage emerges in spring as dark red/purple
color on this 15-foot-tall by 12-foot-wide shrub, and holds its
hue all summer long. In early summer, wispy heads of pink
flowers emerge and contrast beautifully with the dark foliage.
Plants flower on old wood, so do not prune if flowers are
desired. Many home gardeners prefer to grow this primarily
as a foliage shrub and cut it back each winter. New growth is
very upright and clean, resulting in a tight, rounded shrub. In
fall, the foliage turns a wonderful scarlet color before falling
to the ground. Plant in full sun and water occasionally during
droughts once established. This plant is very adaptable and
can be grown in most conditions. It is best to prune in winter
once the leaves have fallen, but do not over-prune. (2016)
Crataegus viridis ‘Winter King’ (Green Hawthorn) is
resistant to cedar-apple rust and air pollution and tolerates
heavy pruning. Masses of white flowers cover the tree
each spring, followed in fall by orange-red berries that are
larger than those of the species. A great asset to any winter
landscape! ‘Winter King’ grows to 30’ and attains a rounded
habit with age. Plant it in full sun; prune during the late winter.
It will withstand a broad range of soil types and is hardy in
zones 4 to 7. (1992)
Cryptomeria japonica ‘Globosa Nana’ (Dwarf
Japanese-cedar) grows 3 to 4 feet tall, and as much as 4
to 8 feet with age. It prefers partial to full sun as well as moist
but well-drained soil. The slow-growing conifer is sensitive to
dry conditions and requires weekly watering in extreme heat.
Attractive green sprays of foliage during the growing season
turn rusty red in winter when grown in full sun. This densedomed dwarf shrub is a superior replacement for a dwarf
hemlock which may fall prey to woolly adelgid. Hardy in zones
5 to 8. (2014)
Cryptomeria japonica ‘Yoshino’ (Japanese Cedar) is
by far the best of the Cryptomeria species. Planted in light
shade with adequate moisture, ‘Yoshino’ overcomes the
winter browning and loss of lower branches from which other
Cryptomeria suffer. A conical-shaped evergreen, it grows
to 30’ high by 18’ wide in 30 years. It is resistant to fungal
problems, and no pest problems have been reported. This
Cryptomeria makes a great evergreen screen with a wonderful
texture. Hardy in zones 5 to 9. (1993)
Daphne x transatlantica ‘Jim’s Pride’ (formerly Daphne
caucasica) is adorned with delicately scented white flowers
from April until frost, with leathery leaves and an almost
billowy habit. It is longer-lived than most Daphnes and is
valued for its compact size (4’ by 4’). It prefers good drainage
and will grow in full sun or partial shade. Hardy in zones
5 to 7. (1990)
Deutzia gracilis ‘Nikko’ (Slender Deutzia) is a compact, finetextured shrub suited to the small garden (2’ tall, 5’ spread)
and makes an excellent ground cover. It is a rapid grower,
with abundant small white flowers starting in late May and
burgundycolored foliage in the fall. This Deutzia prefers part
shade in areas with hot summer temperatures. Hardy in zones
4 to 8. (1989)
Deutzia x hybrida ‘Magicien’ is a unique deciduous shrub
with bright green leaves and a rounded habit. Interesting pink
flowers with white edges cover the plant each June. ‘Magicien’
is fastgrowing and adaptable to many soil conditions; it has no
serious pest problems. After it flowers, prune to remove old
wood and control height. It grows 6’ high x 5’ wide in full or
part sun. Hardy in zones 5 to 8. (2003)
Diervilla sessilifolia Cool Splash™ ‘LPDC Podaras’
(Southern Bush-Honeysuckle) Native to southeastern U.S.,
Southern Bush-Honeysuckle is a low-growing deciduous shrub.
Vigorous and adaptable, it spreads by suckers into a reliable
mass. Tolerant of all light conditions, Cool Splash™ performs
best in full sun, where its variegated glossy leaves develop
vivid tones of green and cream. Small yellow flowers, borne on
new wood, huddle together atop this “toad abode” from June
to August. Uses include massing and the perennial border.
It grows 2.5’H x 3.5’W and benefits from a moderate spring
pruning. Hardy in zones 4 to 7. (2011)
Dryopteris erythorsora ‘Brilliance’ (Brilliance Autumn Fern)
adds elegance and color to a shade garden. This selection
of the Japanese autumn fern was chosen for its red and
bronze new foliage. Growing 18 inches tall by 18 inches wide,
this plant adds a pop of color in spring as the new foliage
emerges. Mature leaves are deeply cut and a perfect shade
of green. This fern will spread through underground rhizomes
to slowly colonize an area. During mild winters the leaves will
stay green all through the winter. Autumn fern prefers part to
full shade and moist soils. In spring, it is best to cut back old
fronds once the new foliage begins to emerge. (2016)
PHSonline.org
PHS Gold Medal Plant Award­—Plant Portraits—Page 5
Eleutherococcus sieboldianus ‘Variegatus’ (Beauty Briar)
Variegated Beauty Briar is an arching, elegant deciduous
shrub. Its fan-like foliage, green with creamy white edges, is
notably the best in its class. Also know as Fiveleaf Aralia,
this shrub blooms discreetly with greenish-white clusters in
May and June. Adaptable to all light exposures, the harshest
urban conditions, and most soils, this versatile plant could go
anywhere but wet sites. It has no pest or disease problems, is
moderately deerresistant, and prefers part sun. Grows 7’ high
x 7’ wide. Hardy in zones 4 to 8. (2006)
Enkianthus perulatus ‘J. L. Pennock’ represents the first
distinctive selection of this plant for spectacular and early
purple-to-red fall color. Spring brings white flowers to this pest
and disease-resistant shrub. A fine twiggy habit and restrained
growth rate (7’ high x 10’ wide) would delight any home
gardener. Plant Enkianthus in full sun to partial shade and
acidic soil. Hardy in zones 5 to 7. (1999)
Epimedium x perralchicum ‘Frohnleiten’ (Frohnleiten fairy
wings) is a clump-forming herbaceous perennial growing 6 to
12 inches tall and 12 to 18 inches wide. An attractive ground
cover for shady area, it tolerates dry shade once established.
Bright yellow flowers up to 1-inch wide bloom in airy clusters
in spring. New leaves emerge green marbled with bronze in
spring and turn green by summer. Bronze marbling reappears
on the leaves in autumn. Also known as barrenwort, bishop’s
hat, bishop’s mitre or fairy wings, this perennial shows
excellent deer resistance. Hardy in zones 5 to 9. (2014)
Fothergilla gardenii ‘Blue Mist’ matures at 3’ to 4’ with
white bottlebrush-shaped flowers and the added attraction
of bluegreen foliage. ‘Blue Mist’ is easily propagated and
will grow in full sun or light shade. Plant in well-drained soil.
A great plant for the foundation, it mixes well with dwarf
conifers. Hardy in zones 5 to 8. (1990)
Fothergilla x intermedia ‘Mount Airy’ (Mount Airy witch
alder) is a particularly strong cultivar that is virtually troublefree (even fairly deer-resistant). In April, the plant displays
upright, white, bottle-brush flowers that smell like licorice.
In the fall, it is one of the last landscape shrubs to turn color,
with foliage that is a blend of yellow, orange, and red, and
sometimes red-purple. Mount Airy can be used anywhere from
sun to shade in most home landscapes. Hardy in zones 5 to 8. (2014)
Gelsemium sempervirens ‘Margarita’ (Carolina Jasmine)
is a fine-textured evergreen vine with a twining growth habit.
It produces fragrant yellow trumpet-shaped flowers from late
March into April. ‘Margarita’ grows almost anywhere, with
characteristics such as drought tolerance, deer resistance, and
soil adaptability. This native will scramble up and cascade over
obstacles or develop into a groundcover, creating a mass of
living color. Plant in sun or part shade. Grows to 12’ high x 6’
wide. Hardy in zones 5b to 9. (2005)
Hakonechloa macra (Japanese forest grass) creates a
graceful 18- to 36-inch tall and wide clump in partially shaded
areas. This deer-resistant grass will tolerate full sun if given
ample moisture. With its arching habit of growth, this grass is
often used to represent flowing water in Japanese gardens. In
winter, foliage turns a delicate, tawny brown, which continues
to add movement in the winter landscape. Hardy in zones
5 to 9. (2014)
Halesia diptera var. magniflora (Two-winged Silverbell)
grows to 25’-30’ in open, wooded, or full-sun conditions. A
heavy and prolonged flowering variety, this Halesia will dazzle
you with large white flowers. Plant in the spring in any moist
well-drained soil. A real showstopper! Hardy in zones
5 to 8. (1995)
Hamamelis x intermedia ‘Diane’ This Asiatic Witchhazel
is the best red-flowerer in its class. The spidery winter blooms
are followed by large green veiny leaves that transform into
various orange, yellow, and red tones in the fall. A hybrid
between H. japonica and H. mollis, ‘Diane’ is generally an
upright spreading small tree or large shrub reaching 20’. Plant
it in full or part sun in well-drained acidic soils. Hardy in zones
5 to 8. (1991)
Hamamelis x intermedia ‘Pallida’ is a Witchhazel with
fragrant lemon-yellow flowers that offer a pleasant burst of
color in February and March. It has great yellow-to-orange
fall color and no serious insect or disease problems. Plant it in
well-drained acid soil in full or part sun. Hardy in zones
5 to 8. (1989)
Hedera helix ‘Buttercup’ is a versatile English ivy with
colorful foliage, excellent as a ground cover or trained to
climb. New leaves are bright yellow-green, later turning butter
yellow. Mature leaves are dark green with distinct light veins. It
grows 6”-8” as a ground cover and up to 90’ trained as a vine.
This Hedera tolerates a variety of soil conditions and full sun to
heavy shade; prune as needed to keep desired form.
‘Buttercup’ is slower growing and less invasive than the
species. Hardy in zones 4 to 9. (1988)
Heptacodium miconioides (Seven-son Flower) is a large
shrub, growing to 20’, that will delight from an early age.
In autumn, red buds open to a fragrant profusion of white
flowers.Once the petals drop, red flower stems continue
interest until red fruit appears. It has exfoliating bark and can
be trained into tree form. Broad soil and pH tolerance makes
this a great plant; it also has no pest or disease problems.
Hardy in zones 4 to 9. (1995)
Heuchera villosa ‘Autumn Bride’ (Autumn Bride
Heuchera) is a versatile native plant that can be used
anywhere in the garden. Most notably, this 2-foot-tall by
3-foot-wide plant does not mind dry shade. The large fuzzy
green leaves make a wonderful ground cover in a shady area,
and the large plumes of white flowers add great interest in the
fall. The plant forms a dense mound of foliage and expands
through underground rhizomes. Though it will spread, it is
also easy to contain by pulling up plants when they show
up in unwanted places. Heucheras prefer part shade, but in
cooler areas can tolerate more sun. Once established, this
plant is very drought tolerant but does best in rich, moist soils.
Autumn Bride Heuchera is very adaptable to most garden
conditions and is deer-resistant. (2016)
Hibiscus syriacus ‘Diana’ (Rose-of-Sharon) brightens any
garden with its pure white single flowers from July to frost.
Flowers remain open into the evening—admire them by
moonlight! This Hibiscus will tolerate a variety of soil types.
Full sun is best, but it does fine in part shade. ‘Diana’ can be
cut back yearly to 2’ to maintain a blooming height of 4’. It is
a polite variety that does not readily re-seed itself. Hardy in
zones 5 to 8. (1991)
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Hosta plantaginea (August Lily) is best known for its shiny
green foliage and fragrant white flowers that open in late
summer, much later than many other varieties. Growing 18
inches tall by 18 inches wide, August lily flower heads emerge
from the mound of foliage in August and are very fragrant
when open. The flowers have been cited as some of the
best flowers in the hosta genus and attract hummingbirds
and butterflies. This plant prefers full to part shade and is
very adaptable to many soil conditions as long as it is moist.
Compared to many other hostas, August lily is very disease
resistant, but slugs and snails can cause some damage. This
plant is ideal in woodland gardens and mixed perennial beds.
(2016)
Hydrangea arborescens ‘Annabelle’ (Smooth
Hydrangea) is a deciduous shrub that grows to 3’ to 5’ tall
and 3’ to 5’ wide. The large white flower clusters of ‘Annabelle’
(up to 1’ across) reward you with a long bloom, June through
July. This elegant Victorian-like show-off does best in part sun
but will tolerate full exposure. ‘Annabelle’ is more compact
and has larger flowers than other arborescens types. Plant in
well-drained soil and cut it halfway back in spring. Hardy from
zones 4 to 9. (2001)
Hydrangea macrophylla ‘Blue Billow’ was discovered on
a Korean island and introduced here for its masses of small,
fertile summer flowers. ‘Blue Billow’ is reliably hardy in this
region and looks best in part shade, planted in slightly acid
soil. Hardy in zones 6 to 9. (1990)
Hydrangea paniculata ‘Limelight’ (Panicle Hydrangea)
This very hardy species of Hydrangea forms flower buds in late
spring, ensuring year after year of reliable bloom. ‘Limelight’
rises above other varieties with a sturdy show of pyramidal
flower clusters (panicles) that are born chartreuse-green, turn
white, and finally mature to shades of pink and burgundy. In
the fall, all three stages of bloom can be viewed on the plant
at the same time. Great for the foundation or shrub border,
‘Limelight’ prefers full or part sun. Grows 8’ H x 6’ W. Prune in
early spring to control height. Hardy in zones 4 to 8. (2006)
Hydrangea quercifolia ‘Snow Queen’ (Oakleaf
Hydrangea) is sleek and elegant, with its deep green foliage
and panicles of white flowers that bloom through June and
July. The old flower heads turn a handsome russet before
the final burst of spectacular wine-colored fall foliage. ‘Snow
Queen’ will grow to 6’ high with an equal spread and does well
in sun or shade. Hardy in zones 5 to 9. (1989)
Hypericum ‘Blue Velvet’ Blue Velvet St. John’s Wort’s
carefree Hypericum ‘Blue Velvet’ Blue Velvet St. John’s Wort’s
carefree nature is well known, but ‘Blue Velvet’ stands above
the rest for distinctive blue foliage and extended flowering
period with buttery-yellow blooms. In addition to being widely
adaptable in full sun or part shade, it is a hybrid with native
parentage that provides a bonus for naturalistic landscapes.
With members of the St. John’s Wort genus considered
medicinal herbs, ‘Blue Velvet’ should continue to remain
unpalatable to deer and a highlight in the landscape. Hardy in
Zones 4 to 8. (2013)
Ilex glabra ‘Densa’ is an upright and compact Inkberry
Holly that tolerates heat, drought, sun, shade, and
transplanting without missing a beat. Suited to problem and
urban sites, ‘Densa’ grows to 4’ with a 4½’ spread in 9 years.
Pest and disease resistant, this broadleaf evergreen is a great
alternative to boxwood. Hardy to zone 4 to 9. (1994)
Ilex ‘Harvest Red’ sports abundant small Christmas-red fruits
on a finely textured, well-shaped deciduous holly. In the fall,
the leaves turn to wine color and then drop; the fruit persists
long into the winter and is admirable after a snowfall. A cross
between I. verticillata and I. serrata, „Harvest Red’ needs a
male pollinator such as ‘Apollo’ or ‘Raritan Chief’. Hardy in
zones 5 to 8. (1991)
Ilex opaca (American Holly) is a large shrub or tree,
generally pyramidal, with alternating spiny evergreen leaves. In
October, this native produces red berry-like fruit that persists
into winter. (Some cultivars have yellow or orange fruit.)
The species has achieved Gold Medal status due to its cold
hardiness, its tolerance of pollution, drought, and moderately
wet sites, and its resistance to deer browsing. These traits,
along with the availability of numerous superior cultivars
(‘Old Heavy Berry’, ‘Jersey Princess’, ‘Satyr Hil’, and ‘Jersey
Knight’ [male]) sets opaca above other holly species of similar
characteristics. A nearby male pollinator is necessary for fruit
production. Planted in acid, moist, well-drained soil, it will
tolerate any light conditions but prefers full sun and protection
from wind. Hardy from zones 5 to 9. (2001)
Ilex ‘Rutzan’ Red Beauty® (Red Beauty Holly) Handsome
dark glossy evergreen leaves create a densely branched
pyramidal tree. For berries production, Red Beauty® needs a
male pollinator; use any of the Blue male Hollies such as Ilex
‘Blue Boy’, ‘Blue Prince’, or ‘Blue Stallion’ and plant one or
two within 100 ft. Remember, the males don’t have berries, a
consideration when choosing their placement. Red Beauty® is
best used as a specimen tree or as a well-placed accent plant.
Planted in well-drained acidic soil, it performs best in sun or
part-sun and grows to about 15’H x 10’W. It’s hardy in zones
6 to 9. (2010)
Ilex ‘Sparkleberry’(Hybrid Winterberry Holly) is valued for
its superior fruit production. A large multi-stemmed deciduous
holly with brilliant red berries often lasting through the winter,
‘Sparkleberry’ will grow to about 12’ high with a similar spread.
This holly is best planted in full sun and is tolerant of most soils
including wet sites. A male pollinator of either parent species
(I. verticillata or I. serrata) must be planted nearby to ensure
good fruiting. Hardy in zones 5 to 8. (1988)
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Ilex verticillata ‘Red Sprite’ (Red Sprite Winter Berry Holly)
grows to be 3 to 5 feet tall and the same wide. This native
low-growing, rounded shrub puts on one of the best displays
of bright red fruits in the winter. Small white flowers in early
summer are followed by a profusion of plump large berries
located in large clusters at the ends of branches. During the
summer, Red Sprite Winter Berry Holly creates a nice lush
green backdrop for perennial gardens, or on the edge of a
native woodland garden. The berries attract birds, and the
shrub is not of interest to deer. This shrub prefers full sun
and slightly acidic, moist soils. Once established, it is a hardy
landscape plant that will need very little care. Due to its
short stature, most homeowners rarely need to prune it, but
if desired it is best to prune in late winter before the foliage
emerges. This shrub must be planted near a male holly such as
Ilex verticillata ‘Jim Dandy.’ (2016)
Ilex verticillata ‘Scarlett O’Hara’ (Winterberry Holly),
growing to 10’ with a 12’ spread in 10 years, extends garden
interest into the winter. An abundance of small clear-red fruit
persists through the cold months. Clay-soil tolerance, with no
pest or disease problems, makes this an ideal plant for the
home garden. ‘Rhett Butler’ is her preferred pollinator. Hardy
in zones 3 to 9. (1996)
Ilex verticillata ‘Winter Gold’ (Winterberry Holly) is a branch
sport of Ilex verticillata Winter Red®. It has jazzy orangeyellow berries from September through December. This native
does best in the boggy shrub border. Use a male pollinator
such as ‘Southern Gentleman’or ‘Apollo’. Grows 7’ H x 7’ W,
in full sun or part shade and moist well-drained acidic soils.
Hardy in zones 4 to 8. (2005)
Ilex verticillata ‘Winter Red’ is a deciduous Winterberry
Holly laden with red fruit through the winter. Growing to
10’ with an 8’ spread, ‘Winter Red’ performs best in moist
well-drained acidic soils. A male pollinator is necessary; try
‘Southern Gentleman’ or ‘Apollo’. Hardy in zones 4 to 8. (1995)
Ilex x meserveae ‘Mesid’ Blue Maid , the best of the blue
hollies, keeps lustrous green foliage year round. Bright red
berries attract birds from October through December. Reliably
hardy and far more heat-tolerant than her sisters, Blue Maid is
a great evergreen shrub. Reaching to 15’, slightly broader than
tall at maturity, Blue Maid takes well to pruning. No disease
problems. Male pollinator needed. Hardy in zones
5 to 9. (1996)
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Illicium floridanum ‘Halley’s Comet’ (Florida Anise
A deerproof, evergreen, native to the southeastern U.S.,
Florida Anise produces 4” long dark green leaves (similar
toRhododendron), which emit a strong pleasant fragrance
when bruised. Outperforming the species and other cultivars,
‘Halley’s Comet’ exhibits superior characteristics such as
improved cold tolerance and faster growth. It’s also a better
bloomer, with plenty of larger red star-shaped flowers that
bloom in May and can persist into the summer. It thrives in
shady, moist, well-drained soil and tolerates part shade; too
much sun will cause it to turn yellowish. Grows 6’H x 5’W.
Hardy in zones 6 to 9. (2010)
Itea virginica ‘Henry’s Garnet’ (Virginia Sweetspire)
is a tough, adaptable native shrub with great contrast from
summer to fall. Fragrant long white flowers bloom in late June
against green foliage; fall foliage is a striking red-purple that
lasts well into winter. This Itea grows to 6’ with an 8’ spread
and is best planted in slightly cool, moist sites, although it will
tolerate dryer sites. Hardy in zones 5 to 9. (1988)
Juniperus conferta ‘Silver Mist’ (Shore Juniper) A
unique|species within a common genus, the shore Juniper, as
it’s commonly called, is salt tolerant and well adapted for the
seashore garden. This urban-tolerant evergreen was chosen
for its dense, more compact growth habit, exceptional bright
silveryblue needles, and robust, versatile demeanor. ‘Silver
Mist’ is extremely tolerant of heat and drought and is best
used in a bright, sunny location with excellent drainage. If
planted two to three feet apart, it will make an unusual ground
cover that is beautiful all year around. Grows 1’H x 5’W. Hardy
in zones 5b to 9. (2010)
Juniperus virginiana ‘Corcorcor’ Emerald Sentinel™
(Eastern Redcedar) is a native juniper that is one of the
toughest plants available. Emerald Sentinel™ has a dark-green
needle and is well suited for a tall screen, hedge, or specimen
tree. It has an upright habit, growing 25’ H x 8’ W. Pest
resistant and tolerant of extreme climatic and soil conditions, it
is also a favorite of small songbirds. Hardy in zones
3b to 9. (1997)
The bright yellow flowers of Koelreuteria paniculata ‘Rose
Lantern’ provide this tree with its common name—Golden
Rain Tree. The glory of ‘Rose Lantern’ is its late bloom
period—August through September—when few other
trees are in flower. InOctober the leaves turn yellow and the
blooms are replaced by rose-pink fruits that persist for five
to six weeks. Koelreuteria is sparingly branched and forms
a rounded tree at 30’ to 40’ H by 30’ to 40’ W. No pests or
disease. Hardy in zones 5 to 9. (1997)
Lagerstroemia indica ‘Whit III’ Pink Velour® is a proven
hardy Crape myrtle suitable for more northern gardens. One
of the more colorful varieties, Pink Velour® parades flashy
magenta-pink flower clusters atop shiny burgundy foliage in
midsummer. Pink Velour® has been chosen for its cold
tolerance and resistance to powdery mildew. Its relatively late
bloom time justifies its place in the landscape. Plant as a
specimen or near the foundation; prune in late August or early
spring. Grows 10’ H x 6’ W. Hardy in zones 6 to 9. (2007)
Lindera glauca var. salicifolia (Spicebush) is a unique
deciduous shrub with a pyramidal habit. Its willow-like foliage
emerges emerald-green in the spring, turns brilliant yelloworange in fall, and then changes to an eye-catching khaki
color on stubbornly persistent foliage throughout the winter
Inconspicuous flowers produce opal-black fruit in late summer.
Use as a specimen, in mass, or in the border. Spicebush grows
10’ H x 6’ W and looks its best in full sun but will tolerate part
sun. Hardy in zones 5 to 7. (2009)
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Liquidambar styraciflua ‘Slender Silhouette’ (American
Sweetgum) This is a very narrow low-maintenance cultivar of
the underused American Sweetgum tree. Unlike the species,
‘Slender Silhouette’ produces little fruit (those brown spiky
orbs) that, when dropped, land only in a small, easily cleanedup 4’ x 4’ area. Its dark green glossy leaves turn yellow with a
tinge of red in the fall. This is a great park and allée tree—or
use it almost anywhere a narrow tree is desired. It prefers
moist soil and space for root development. Grows 50’H x 4’W.
Hardy in zones 5 to 9. (2011)
Lonicera pileata (Privet Honeysuckle) is a low, dense,
deerresistant ground-hugging shrub with fine-textured
foliage. Use as an evergreen groundcover in place of more
common plants such as ivy and pachysandra. It also works
well in difficult sites like slopes and ledges. It sometimes
produces translucent amethyst fruit. Growing 3’ H x 5’ W,
Privet Honeysuckle prefers welldrained soil and full or part sun.
Hardy in zones 6 to 8. (2009)
Lonicera sempervirens ‘Major Wheeler’ (Major Wheeler
Trumpet Honeysuckle) is a native honeysuckle vine with
lush foliage and coral-red flowers from late spring through
the entire summer. The flowers attract a variety of wildlife,
including hummingbirds and butterflies. This extremely
disease-resistant vine stays green even during drought
conditions. Trumpet Honeysuckle blooms on both new and
old growth, so the vine can be pruned to fit the site. Once
established, the vine is tolerant of drought and dry soils, and
will climb 8 to 15 feet. The more sun this cultivar gets, the
more flowers it will produce. It can also be grown in a pot and
is deer resistant. (2015)
Maackia amurensis ‘Starburst’ (Amur Maackia) A small
deciduous tree with clean, exotic, rich-green leaves and
reptilian-like ornamental bark on younger trees, this urban
tolerant diehard has a nice display of spiky white flowers in
mid to late summer. ‘Starburst’ is denser and more uniform
and vigorous than the species. Great for small gardens and
city plantings, the Amur Maackia is tolerant of poor soil and
pollution. It will tolerate part sun but prefers full sun. It reaches
30’ H x 25’ W. Hardy in zones 4 to 8. (2006)
Magnolia ‘Daybreak’ is an outstanding addition to the Gold
Medal Magnolia collection. The medium-green foliage is clean
and attractive. It blooms in May, far past any chance of frost
damage, with unsurpassed fragrance. The large deep-pink
flowers open to 9” to 10” in diameter. Its upright growth
habit and pollution tolerance make ‘Daybreak’ an excellent
specimen and urban tree. Plant in sun in well-drained soil. It
reaches 25’ H x 15’ W. Hardy in zones 5 to 8. (2004)
Magnolia ‘Elizabeth’ has creamy pale-yellow lily-like flowers
and grows to 25’-35’ with a 10’-15’ spread. A cross between
M. acuminata and M. denudata, ‘Elizabeth’ is a very beautiful
and unique variety that works well as a shade or specimen
tree. It’s best planted in full sun with slightly acid soil. Hardy in
zones 5 to 8. (1988)
Magnolia ‘Galaxy’ is the result of a cross between M. liliiflora
and M. sprengeri ‘Diva’. Late each April it is adorned with a
profusion of dark-pink flowers, escaping the frost damage of
early spring. Pruning away any suckers when young will
produce an upright pyramidal shade tree at maturity. No pest
or disease problems. Hardy in zones 5 through 9. (1992)
Magnolia grandiflora ‘Bracken’s Brown Beauty’ is a
pyramidal evergreen Southern Magnolia with glossy dark
green leaves. The lemon-scented large white flowers bloom
in late spring. ‘Bracken’s Brown Beauty’ is recognized for
itsdensely pyramidal growth habit and unsurpassed cold
hardiness. An envied prize with no serious pest problems, it
matures to about 35’ H x 20’ W. Plant in full or part sun. Hardy
in zones 5b to 9. (2003)
Magnolia grandiflora ‘Edith Bogue’ is a hardy evergreen
Southern Magnolia that suffers less winter damage than
most others of the species. In June and July, the creamy
9”-12” blossoms fill the air with a sweet, lemony fragrance.
Lustrous dark-green foliage grows upright along the branches.
Plant in full sun to part shade. ‘Edith Bogue’ tolerates some
moisture but prefers rich well-drained soil. It can grow to 60’
high and spread to 30’. Hardy in zones 6 to 9. (1992)
Magnolia stellata ‘Centennial’ (Star Magnolia) blooms
late in April, giving it a better chance than other magnolias
of escaping frost damage to its flowers. Its 5½” flowers start
with a pink tinge and fade to white. Growing to 15’-20’ with
a spread of 10’-15’, this floriferous cultivar prefers full sun.
Disease and pest resistant. Hardy in zones 4 to 9. (1997)
Magnolia virginiana ‘Jim Wilson’ Moonglow™ (Sweetbay
Magnolia) Retaining most of its leaves throughout a normal
Mid-Atlantic winter, this almost-evergreen native Magnolia was
selected for its fast growth, cold hardiness, and lush darkgreen foliage. The unique upright habit of ‘Jim Wilson’ is
enhanced by beautiful creamy-white flowers in late spring.
These 2”-3” longlasting blooms lace the air with a pleasant
lemony scent. Pest resistance and adaptability to wet sites,
characteristics shared by the well-respected species, add to
the versatility of Moonglow™. Growing to 35’ H x 15’ W, it
prefers acid soil and a part-sun location. Hardy in zones
5 to 9. (2008)
Mahonia japonica ‘Japanese Mahonia’ (Leatherleaf
mahonia) grows to be a medium-sized shrub with glossy
pinnately compound leaves similar to holly. In late winter and
early spring, long arching racemes of fragrant yellow flowers
open, followed by attractive blue fruits in early summer. This
evergreen shrub grows 5 to 7 feet tall and 7 to 10 feet wide. It
is great for woodland gardens, shrub borders, or as a privacy
hedge, and grows easily in partial to full shade and moist, welldrained soils. It is best to plant this shrub in areas protected
from strong winds. It is also advisable to plant more than one
shrub in an area for great berry production. Mahonia has no
serious pests or diseases and is deer resistant. (2015)
Mahonia bealei (Leatherleaf Mahonia) is a striking
evergreenshrub that adds a bold textural statement to any
garden. Deerresistant, Mahonia will grow to 5’ H x 4’ W in part
shade; it prefers a moist well-drained soil. Older plants bloom
with chains of yellow flowers followed by blue berries. Hardy
in zones 5 to 9. (1998)
Malus ‘Adirondack’ is a narrow, upright Flowering
Crabapple that grows to 18’ in 20 years. This slow growth
rate, coupled with disease resistance and abundant white
flowers, makes this tree a standout in the garden. Small
persistent orange-red fruit appear in autumn. Pollutiontolerant ‘Adirondack’ is an ideal choice for urban gardens and
parks. Hardy in zones 4 to 8. (2002)
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Malus ‘Donald Wyman’ is an outstanding Flowering
Crabapple, fast-growing to 20’ with an equal spread and
highly disease-resistant characteristics. ‘Donald Wyman’ is
useful as a street tree or garden specimen, with pink buds
opening to white flowers in mid to late April. Glossy bright red
fruits last well into winter. Hardy in zones 5 to 7. (1989)
Malus ‘Jewelberry’ is a dwarf Flowering Crabapple that
grows to only about 6’ high. Dark pink buds in spring open
to pink and white flowers; in cooler springs, the flowers
will be deeper in color. Glossy red fruits follow the bloom.
‘Jewelberry’ is a highly disease-resistant variety. Hardy in zones
5 to 7. (1989)
Metasequoia glyptostroboides (Dawn Redwood) is
a fastgrowing tree that eventually will reach 120’. Highly
architectural, it makes an ideal focal point in the landscape.
An orange-rust fall color and fine twiggy habit round out a full
year of garden interest. It has no pest or disease problems and
tolerates soil types from dry to boggy and acid to alkaline. It
prefers full sun. Hardy in zones 4 to 8. (1999)
Metasequoia glyptostroboides ‘Ogon’ (Gold Rush Dawn
Redwood) This bright-yellow-needled cultivar of the majestic
“living fossil” grows slightly smaller and slower than the
species. ‘Ogon’, also known as ‘Gold Rush’, contrasts well with
blues and burgundies in the landscape, eventually turning a
coppery orange in the fall before shedding its needles. It has
no pest or disease problems and tolerates soil types from
dry to boggy and acid to alkaline. It prefers full sun and will
eventually grow to 100’ x 30’ (in 60 years). ‘Ogon’ is hardy in
zones 4 to 8. (2008)
Nyssa sylvatica ‘Wildfire’ Black Tupelo Tree has spectacular
red-tipped new growth into summer, and is one of the most
stunning autumn foliage choices. It is the perfect companion
for maple’s fall color and its small black fruit makes this tree an
amazing native selection for wildlife interest. Hardy in Zones
4 to 9. (2013)
Osmanthus heterophyllus ‘Goshiki’ (False-holly) is a
hollylike evergreen shrub with unique colorful leaves. The
new growth is pink-tinged, maturing to green with splashes of
cream and gold. ‘Goshiki’ blooms from September through
October; its creamy-white flowers are hidden but very fragrant.
It does best in part sun and well-drained soil; some winter
protection is recommended. Grows 5’ H x 4’ W. Hardy in zones
6 to 9. (2004)
Panicum virgatum ‘Northwind’ (Northwind Switchgrass)
is an outstanding selection of the native switchgrass with
5- to 7-foot-tall, upright, olive-green foliage that stands out
as a vertical accent in any garden. In fall, the grass is topped
with attractive plumes while the foliage turns a yellow-beige
color. This herbaceous perennial is best planted in groups or
as part of a naturalized landscape. Easy to grow and droughttolerant, Northwind Switchgrass prefers moist sandy or clay
soils. In full sun it has an upright columnar habit, but in more
shady conditions it will grow in a more open form. This native
perennial is deer resistant, disease-free and tolerant of salty
soils. (2015)
Parrotia persica (Persian Ironwood) Mottled fall color and
exfoliating grayish bark set this small tree apart. It will survive
full sun and drought conditions, which makes it a good choice
for a street tree. It reaches 20’ to 40’, with moderate growth.
Hardy in zones 4 to 8. (2000)
Physocarpus opulifolius ‘Diablo’ (Eastern Ninebark)
Also known in the trade as Monlo and Diabolo™, this is an
extremely hardy deciduous shrub with an upright spreading
habit and decorative peeling bark. Showy pinkish- white
flowers bloom May through June. This native has interesting
purple foliage in summer and red fruit in autumn. It is ideal for
mass plantings. It grows 5-10’ H by 5-10’ W; prune it to control
height. Plant it in full or part sun. Hardy in zones 2 to 7. (2002)
The graceful appearance of Picea orientalis (Oriental
Spruce)makes this evergreen a standout in the landscape.
Branches of fine dark-green needles descend and smoothly
rise upward again. This spruce holds its lower branches as it
ages. Windtolerant, it grows into an effective screen. It is slowgrowing and should be planted in full sun and well-drained
soil. It has no pest or disease problems. Hardy in zones 4
through 7. (1992)
Pinus koraiensis (Korean white pine) is one of the hardiest
pines but is less known than the native Pinus strobus (Eastern
white pine). It produces longer, bluer needles that remain on
the plant for two extra years, creating a fuller, more attractive
appearance. Slightly smaller than other pines, it grows 30 to
40 feet at maturity in a landscaped setting. This white pine is
more adaptable to stressful conditions, and suffers less branch
breakage than other pines during snow and ice storms. Hardy
in zones 4-7. (2014)
Pinus strobus ‘Fastigiata’ (Upright Eastern White Pine) is
an upright form of white pine that lacks the rigid appearance
of most columnar plant forms. Soft evergreen needles adorn
the ascending branches of this tree. Fast growing to about
50’ H x 20’ W in 25 years, this pine is ideal for screening.
Lower branches persist into maturity. Plant in full sun in all but
alkaline soils. Hardy in zones 3-7. (2003)
Polygonatum odoratum ‘Variegatum’ (Variegated
Solomon’s Seal) is a shade-loving perennial that grows 2 to 3
feet tall and slowly spreads through an area via underground
rhizomes. Each stem has 8 to 15 variegated leaves. In late
spring, small bell-shaped flowers with a lily-like fragrance
emerge on the underside of the stem. In the fall, flowers give
way to black berries and leaves turn a dazzling bright yellow.
This perennial is best for woodland gardens or shady sections
of rock gardens. Solomon’s Seal does best in cool climates,
and prefers more shade in warmer climates. (2015)
Polystichum acrostichoides (Christmas fern) is a native
fern adapting to both dry and moist wooded slopes, banks,
and ravines. Growing in fountain-like clumps to 2 feet tall, it
features leathery, lance-shaped, evergreen fronds. This deerresistant evergreen fern offers winter interest for any landscape
and is an excellent groundcover fern for woodland sites. Hardy
in zones 3-8. (2014)
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Prunus ‘Hally Jolivette’ (Flowering Cherry) has pink buds
that open to white blooms over a succession of 10 to 20 days
in early spring. A small bushy tree, growing to 15’ by 15’, ‘Hally
Jolivette’ starts blooming in its second year! It is ideal for small
properties; the fine twiggy habit even adds winter interest.
Plant in full sun. Hardy to zone 5 to 7. (1994)
Prunus lusitanica (Portugal laurel) was first described by
Linnaeus in 1753. The Portugal laurel is an evergreen shrub
or small tree reaching 10 to 20 feet, but trees can grow up
to 50 feet tall in the wild. Allowed to grow into a respectable
cherry tree, it produces a profusion of gorgeous five- to
ten-inch racemes or white flowers in late May, followed by
small purplered cherries that ripen to shiny black by autumn
(caution: the leaves and berries are toxic). The shiny green
foliage on red stems gains a bluish tinge in winter. Hardy in
zones 4-8. (2012)
Prunus ‘Okame’ (Flowering Cherry) does well in many sites
and produces an abundance of blooms. This cherry grows to
25’ tall with a similar spread. Pink flowers appear early in the
season, late March to mid-April. Fall foliage is bright orange
and yellow. Plant it in full sun; prune to shape it when it’s
young. Hardy in zones 6 to 8. (1988)
Prunus x yedoensis ‘Akebono’ (Akebono Yoshino Cherry)
is a spectacular flowering cherry tree best known for its showy
spring display of flowers. Growing 25 to 30 feet tall and 25 to
30 feet wide, this cherry tree is one of the prominent species
planted throughout Washington, D.C., home of the national
cherry festival. This cherry reliably blooms each spring and
becomes covered in small double flowers that range from
white to pink in color. After the flowers are done, the lush
green foliage provides nice summer shade and eventually
turns a bright yellow for fall. This tree does best planted in full
sun and watered regularly to establish. To keep its nice shape,
prune in late winter before leaves emerge. While young, the
tree has a very nice upwards habit, making it an excellent
choice as a street tree or along a driveway. As the specimen
matures, the branches begin to grow horizontal and create a
nice, rounded habit. (2016)
Quercus alba (White Oak) is a tree to plant for your
grandchildren. It grows slowly to 150’ in the open; its rugged
branching habit and attractive bark make it a majestic sight
in winter as well as the ultimate shade tree in summer. This
mighty native has no serious pests or diseases. Hardy in zones
5 to 9. (2000)
Quercus palustris ‘Pringreen’ Green Pillar® (Pin Oak) is
a narrow, columnar (fastigiate) cultivar of our native Pin Oak.
Glossy green leaves in spring and summer give way to a nice
maroon and red fall display. Green Pillar® is a popular choice
for areas requiring a narrow, well-mannered shade tree. Use as
a park or specimen tree, in small gardens, or as a street tree. It
prefers full sun and grows 50’ H x 15’ W. Hardy in zones
4 to 8. (2006)
Rhus aromatica ‘Gro-Low’(Fragrant Sumac) is a dense
widespreadinggroundcover with attractive aromatic
glossy-green foliage that turns amazing shades of reds and
oranges in fall. Small yellow flowers (panicles) appear in early
spring, followed by wildlife attracting hairy red fruit in fall.
‘Gro-Low’ is a native eco-friendly low-maintenance plant
exhibiting drought and urban tolerance and high deer
resistance. Use it as a ground cover, to stabilize embankments,
and in most other hard-to-cover areas. Grows about 2’ H x 6’
W in full or part sun. Hardy in zones 3 to 9. (2009)
Rhus typhina ‘Bailtiger’ Tiger Eyes® (Staghorn Sumac)
This unique Sumac has purplish-pink stems displaying exotic
cut-leaf foliage. Changing with each season, Tiger Eyes®
starts out chartreuse in the spring, turns bright yellow in the
summer, and eventually turns scarlet-orange in the fall. Tiger
Eyes® is more compact than the species and is not considered
invasive. It prefers well-drained soil but adapts well to poor
soils and urban situations, exhibiting good pollution tolerance.
It’s great for the foundation, as a specimen, in mass, or in
containers. A native to North America, this Sumac grows about
6’ H x 6’ W in full or part sun. Hardy in zones 4 to 8. (2007)
Rudbeckia maxima (Great Coneflower), a native of
the U.S., is a show-stopper with its lush blue-green basal
foliage. In spring, 5- to 7-foot-tall flower stalks emerge and
reach skyward. Flower stalks are topped with a large, central
brown cone surrounded by slightly arching yellow rays. Once
the flowers go to seed, gardeners will enjoy the wildlife that
comes to eat the seeds. Goldfinches and sparrows are some
of the many small birds drawn to the Great Coneflower. This
herbaceous perennial grows best in well-drained average soils
with full sunlight exposure. If conditions are right, this plant
will begin to naturalize in an area and spread through seed
dispersal. No serious diseases or pests affect this plant, but it
is susceptible to powdery mildew when stressed. (2015)
Sarcococca hookeriana var. humilis (Sweetbox) is a
spreading evergreen shrub with a low mounding habit. Its
narrow dark-green leaves create a lush ground cover. Its neat
attractive appearance is enhanced in March and April by very
fragrant small white flowers. It’s excellent as a low foundation
plant (3’ H x 5’ W) or as a perennial companion plant. Grow it
in part shade to shade in well-drained soil. Hardy in zones
5 to 8. (2004)
Sciadopitys verticillata (Japanese Umbrella Pine)
offers the richest dark-green foliage of any evergreen. Long
thick needles are borne in whorls on a handsome, dense tree.
A beautiful specimen tree, it adds value to any property. Plant
it in rich welldrained soil in a sunny location. Although the
largest trees normally seen are between 20’ and 30’ high,
spreading to 15’ wide, in time this tree will mature to 60’.
Hardy in zones 5 to 7. (1991)
Schizophragma hydrangeoides ‘Moonlight’ (Vine
Hydrangea) is a noninvasive vine with a silver variegation.
It is a wonderful accent plant, with white flowers that bloom
in June and July. It grows to 40’ and attaches itself with no
mechanical supports. ‘Moonlight’ will tolerate sun or shade.
Hardy in zones 5 to 9. (1998)
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Spiraea thunbergii ‘Ogon’ Mellow Yellow is a deciduous
shrub with bright yellow-to-chartreuse finely textured leaves.
White flowers precede the foliage in early spring. This three
season charmer produces persistent fall colors of orange,
red, pink, or salmon. Tolerant of many soil types and light
conditions, it is ideal for the perennial bed or a foundation
planting. Prune it at any time to keep it full and neat. Grows 4’
H x 4’ W in full or part sun. Hardy in zones 5 to 9. (2003)
Stewartia pseudocamellia var. koreana (Japanese
Stewartia) This unique modest-sized tree grows to about 30’
in this country, with interest throughout the seasons—saucershaped white flowers from mid-June through July, orange-red
fall color, and smooth exfoliating bark that is most striking in
winter. Native to Japan and Korea, Stewartias should be grown
in part sun and will do best in acid soils. Hardy in zones
5 to 7. (1990)
Styrax japonicus ‘Sohuksan’ (Emerald Pagoda Snowbell)
A distinctive form of the Japanese snowbell with a superior
plant habit, large glossy leaves and very large fruit. Its large
white flowers are highly fragrant. It naturally makes a singlestemmed, medium-size tree, attaining about 30’H x 35’W,
growing very fast in its first years and then more slowly. It
grows best in fertile, well-drained soil in light shade with
morning sun. It is suntolerant but should not be planted in a
hot, dry location. Hardy in zones 5 to 8. (2010)
Symphyotrichum oblongifolium ‘October Skies’ (October
Skies Aster) is a wonderful selection of our native aster with
superior qualities. This 2-foot-tall by 2-foot-wide plant has dark
blue flowers with yellow centers. The flowers attract butterflies
and pollinators and add color to mixed perennial beds later
in the season. October Skies aster will form a lush mound of
foliage and is much slower to spread out than other native
asters. This plant needs full sun in well-draining soil and is
very drought-tolerant once established. Because of its shorter
stature, October Skies doesn’t need to be cut back in the
spring like many other native asters. This plant is best planted
in masses and can be used as a tall ground cover if desired.
(2016)
Syringa meyeri ‘Palibin’ (Meyer Lilac) is an ideal Lilac for
the gardener with limited space. Reaching a maximum size of
4’-5’ high and 3’-4’ wide, it needs little pruning. It prefers full
sun and is densely covered with lavender-pink panicles for two
weeks in May. Mildew is not a problem on its medium-textured
leaves. Hardy in zones 4 to 7. (2000)
Syringa reticulata ‘Ivory Silk’ (Japanese Tree Lilac) blooms
reliably in midsummer with large creamy-white panicles.
Flowering begins at a young age on this sturdy, compact
tree, which grows to 20’ with a 12’ spread in 15 years. It is
droughtresistant; no pest or disease problems have been
reported in the Gold Medal region. This is a great street tree.
Hardy in zones 3 through 7. (1996)
Taxodium distichum var. imbricarium Debonair® ‘Morris’
(Pond Baldcypress) A particularly beautiful deciduous
conifer with interesting green pendulous foliage that strikingly
contrasts with its formal, pyramidal habit. The fall color is
a beautiful bronze, and the winter silhouette is dramatic.
Debonair® flourishes in most landscape situations, especially
wet ones. Grows 60’H x 20’W. Hardy in zones 5 to 9. (2011)
Thuja ‘Green Giant’ (Green Giant Arborvitae) has a
wonderful habit for use as an evergreen screen or specimen
plant. Reaching an ultimate height of 75’ with a spread of
12’-20’, this tree has a graceful texture and no pest or disease
problems. It’s a vigorous grower in any soil condition. Hardy in
zones 5 to 7. (1998)
Vaccinium corymbosum ‘Sunshine Blue’ Dwarf Highbush
Blueberry is an elite selection that is the epitome of what the
PHS Gold Medal represents: seasonal interest, durably
growing, and a reward to have in the garden. It can be used
as an ornamental shrub in the landscape, has fruit-bearing
blueberry selection that is complemented by its blue foliage,
and a worthy choice for use as a hedge in the garden with its
uniform habit of growth. Hardy in zones 5 to 10. (2013)
Viburnum x burkwoodii ‘Conoy’ (Linden Viburnum)
displays a branching habit ideal for foundation plantings and
the small garden. In May, red buds open to white flowers;
red fruit ripens to black each autumn. Growing to 5’ with a
spread of 7’, ‘Conoy’ prefers sun but will tolerate part shade.
This evergreen shrub, the last selection of Dr. Egolf’s breeding
program at the U.S. National Arboretum, withstands pruning
and shearing. It is pest and disease resistant. Hardy in zones
5 to 8. (1997)
Viburnum x burkwoodii ‘Mohawk’ (Burkwood Viburnum)
is a deciduous shrub that grows to 8’ with a spread of 10’.
In late April, red buds open to fragrant white blossoms for
a splendid addition to any garden. Plant it in full sun for
most flowers or in partial shade for more persistent flowers.
‘Mohawk’ is notably resistant to powdery mildew and bacterial
leaf spot and is hardy in zones 5b to 8. (1993)
Viburnum x rhytidophylloides ‘Darts Duke’(Dart’s Duke
Viburnum) is a superior selection prominent for its extra
large, leathery, dark green leaves; massive 6 to 10 inch creamywhite flower heads in May; and heavy set of bright red fruit
that changes to black in autumn. Growing 8 to 10 feet high
with equal spread at a medium rate, this semi-evergreen shrub
tolerates heavy shade or full sun and can potentially re-bloom
in October if the season allows. Hardy in zones 5-8. (2012)
Viburnum ‘Eskimo’ is a selection of the U.S. National
Arboretum’s plant breeding program. It is a handsome,
compact shrub that grows to 4’-5’ in height and width. In early
May this plant is covered with creamy white 4” flowers set on
horizontal branches; in August, the fruit ripens from dull red
to black. ‘Eskimo’ tolerates partial shade conditions and is
semi-evergreen. Pest and disease problems are absent, and
‘Eskimo’ is resistant to bacterial leaf spot. Plant it in full sun.
Hardy in zones 6 to 8. (1992)
Viburnum dilatatum ‘Erie’ (Linden Viburnum) is a large
deciduous shrub that is worth the space in your garden as it
grows to 10’ H by 12’ W. With frost, the abundant and well
displayed fruit turns from red to coral and lasts long into
winter. Mid-May brings creamy white flowers, and fall color
ranges from yellow to orange red. ‘Erie’ flowers best in full sun
but grows well in many exposures and soil types; it is pest and
disease resistant. Hardy in zones 5b to 8. (1993)
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Viburnum nudum ‘Winterthur’ is in its full glory in autumn.
The mix of pink and blue berries set against rich purple foliage
makes this shrub a knockout. Creamy white flowers in the
spring round out a year of show for this wonderful variety.
‘Winterthur’ will grow in rich, wet, shaded sites as well as in
sunny welldrained locations. It grows to about 6’ H. Hardy in
zones 5 to 9. (1991)
Viburnum plicatum f. tomentosum ‘Shasta’ (Doublefile
Viburnum) is without equal when it comes to flowering. In the
spring there is hardly a spot on the shrub that is not covered
by a large white blossom. It grows best in rich soil, in sun to
part shade. Its compact habit (6’ tall-12’ wide) makes ‘Shasta’
an ideal addition to any garden. Hardy in zones 5 to 7. (1991)
Vitex agnus-castus ‘Shoal Creek’ (Chastetree) is a
deciduous vase-shaped shrub (a small tree in the South)
with an upright growth habit. Selected for its large “bestof-the blue” flower spikes and dense habit, ‘Shoal Creek’s
highly desirable long bloom-time (June through September),
disease-resistant foliage, and butterfly-attracting ability place
it in a class of its own. Although a large shrub, the highly deerresistant Vitex can be cut back in June to control height. Stem
die-back can occur during a cold winter, but this fast grower
recovers quickly. Uses include massing, borders, specimen,
and cut-back shrub. Prefers full sun but will tolerate part sun;
best planted in loose, well-drained soil. Grows about 6’ H x 5’
W. Hardy in zones 6 to 9. (2009)
Weigela florida ‘Alexandra’ Wine & Roses™ (Old
Fashioned Weigela) is an easy-to-grow medium-size shrub.
Vibrant pinkish flowers in spring contrast beautifully with its
unusual pest-free dark burgundy-purple glossy foliage. Full
sun brings out the best hues of this pollution-tolerant beauty.
Hardy in zones 4 to 7. (2000)
Wisteria frutescens ‘Amethyst Falls’ (American Wisteria)
This North American native is a delightful alternative to its
invasive Asian cousins. Slightly fragrant lavender-blue 5”
flowers cover this twining vine in May and June. ‘Amethyst
Falls’ is a superior selection with recurring blooms through
August. Tough and adaptable, it’s suitable for urban gardens—
great on a trellis or arbor, over fences, and in containers. It
grows to about 15 feet; prune as desired in early spring. Plant
it in full or part sun. Hardy in zones 5 to 9. (2006)
Xanthocyparis (syn. Chamaecyparis) nootkatensis
‘Pendula’ (Weeping Alaska-cedar) is an evergreen that
grows 20 to 35 feet tall and 8 to 12 feet wide. This longlived weeping conifer is native to the Northwestern U.S. and
Canada, but makes a great addition to gardens along the East
Coast. A slow-growing tree with an exceptional weeping habit,
the Alaska-cedar features widely spaced side branches with
blue-green needles. The Alaska-cedar is a perfect specimen
tree for the garden, patio or near a small pond. It grows best
in average, well-drained soils, in full sun or partial shade. Like
many conifers of the Pacific Northwest, it thrives in regions
with high humidity and rainfall. (2015)
Zelkova serrata ‘Green Vase’ (Japanese Zelkova) is a
fastgrowing hardy shade tree, well suited for home gardens or
urban sites. ‘Green Vase’ is especially useful as a street tree; it
tolerates airborne pollutants, drought, and heavy clay soils. It
grows to 60’-70’ H with a 30’-40’ spread. With its neat habit
and upright ascending branches, it is great for near the street
or driveway. Hardy in zones 5 to 8. (1988)
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