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Trillium ovatum
Gardening with Native
Plants of Oregon
Linda R. McMahan
OSU Extension Service
Yamhill County
[email protected]
Calypso bulbosa, fairy slipper
Sedum spathulifolium, stonecrop
Darlingtonia california at
Darlington Botanical Wayside
Darmera (Peltophyllum) peltatum
leaves
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Darmera flowers
Spiraea douglasii
Physocarpus capitatus and Rosa
nootkana
Rubus parviflorus, salmonberry
Viola glabella, stream violet
Vaccinium parviflorum, red
huckleberry
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Maianthemum dilitatum, false lilyof-the-valley at the coast
Olsynium douglasii Grass widow
in Columbia River Gorge
Ribes aureum, golden currant
Rhododendron occidentale,
Western azalea
Mimulus cardinalis and Achillea
millefolium (yarrow)
Camassia leichtlinii, Camas
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Acer circinatum, vine maple
Trillium ovatum, an uncommon
form
Polystichum munitum, sword fern
Calochortus sp., cat’s ear
Sara Orange-Tip Butterfly on a
native flower
Castilleja sp., paintbrush
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Lilium columbianum, Westen
tiger lily,
Aquilegia formosa, Western
columbine
Philadelphus lewisii, Western mock
orange
Symphoricarpos alba, snowberry
Scoliopsis bigilovii, slinkpod
Rhododendron macrophyllum,
Western rhododendron
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Petasites frigidus, Coltsfoot
Ready to Learn More?
• Beyond sheer beauty: choosing native
plants for your garden
– Geographic regions and gardening with native
plants
– Understanding wild habitats
• Care of native plants
• Back to the plants -- My all time favorite
native plants for gardens
• Plants in real gardens
Choosing Native Plants for Your
Garden
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•
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•
Ornamental Value
Sentimental Value
Plants from Close By
If you want show, go for it
Understand Wild Habitats
• Coastal habitats are often extremely wet
and plants need extra water to survive
• An exception are those of sand dunes
which can be very hardy
Geographic Regions-Rainfall Tells
Much of the Story
The western side
of Oregon, about
1/3rd of the state,
has
characteristics
that differ
significantly from
other parts of
Oregon
Understanding Wild Habitats
• Western mountain forests are wet and
shady
• Plants from these habitats sometimes
need extra water and shade – Oxalis,
bleeding heart, Piggy-back plant, and
more
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Understanding Wild Habitats
Understanding Wild Habitats
• Willamette Value Prairie habitats and other
prairie sites in Oregon have some good
garden plants that are often drought
tolerant and colorful, Examples are lupine,
Oregon sunshine, Penstemon serrulatus,
Sidalcea’s, and yarrow
• As we go east, the land becomes dryer, as
in the Columbia River Gorge – Catherine
Creek here
• Plants require good drainage and the
more delicate ones sometimes do not do
well in gardens, sedums, the Oregon form
of California poppy
Understand Wild Habitats
Understand Wild Habitats
• Central Oregon conifer forests are also
dry, plants require good drainage, but can
often withstand both heat and cold, many
penstemons, desert parsley, eriogonum
Oregon Flora Project
• http://www.oregonflora.org/
• The Eastern Oregon is wildly beauty with
drought tolerant desert natives, some of
which are extremely adaptable to the rest
of Oregon like the golden currant.
Care of Native Plants
• Appropriate Water Use
• Soils and Fertilizers
• Pruning
http://www.oregonflora.org/
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Appropriate Water Use
• Oregon natives are adapted to periods of
summer dry
• You may need to adjust irrigation,
however, if you desire livelier looking
plants or if you are growing plants from
areas of the state unlike yours
Pruning
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•
The style is up to you
Can be dramatic
Can be subtle
Can be non-existent
Soils and Fertilizer
• Use the native soil if possible
• Increase of decrease drainage as
appropriate for the plants you are using
• Use minimal if any fertilizer--the plants
may actually grow too tall!
My All-Time Favorites
Some of these are common in the trade,
some rare. You may have to look really
hard.
These are the 10 love the most
Leucothoe davisii - southern
Oregon,
Ribes aureum, Central and
Eastern OR
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Ribes sanguineum, King
Edward the VII
• To England and back
Iris tenax, Oregon iris
• Native to mountains and valleys in western
Oregon
Peltophyllum (Darmera)
peltatum, Indian rhubarb
• From the rivers and streams of SW
Oregon
• Dramatic in flower and form
Penstemon serrulatus, coast
penstemon
• Coastal Oregon and Willamette valley
• Great for sunny borders
Philadephus lewisii, Western
mock orange
• Most fragrant of them all
• Native to many regions of the state
• Carefree and prolific
Vancouveria hexandra, Insideout-Flower
• Deciduous groundcover from Cascades
and Coast Range
• Quite the rage in New York!
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Mimulus cardinalis, scarlet
monkeyflower
• Southern Oregon native
• Moist soil, nearly full sun
Pulling it All Together in a Garden
Camassia quamash/ C. leichtlinii,
Camas
• Native bulb, needs summer dry
• Beautiful shade of blue to blend with the
daffodils
Bee on Ceanothus thyrsiflorum
• Plant photos taken in landscapes featuring
native plants
Fall color Cornus sericea, OSU
campus
Native purple violet and coltsfoot,
McMinnville Public Library
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Wild ginger, and other plants,
McMinnville Public Library
Sedum in faniciful pots, Private
garden
Oxalis, ferns, and Ribes, Private
garden
Sword Fern and old log, Private
garden
Oxalis and Piggy-back plant,
Private garden
Salal and sword fern, Berry Botanic
Garden, Portland
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Oregon iris, Waterfront Park,
Corvallis
Native and other sedums, Private
garden
Ribes aureum with leaves of nonnative Philadelphus (mock orange)
below
Emerging dragonfly, Berry Botanic
Garden
Wild dunes strawberry, Oregon
State University campus
Plantings around Engineering
Building, OSU
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Sword fern with non-native azalea
flowers, Berry Botanic Garden,
Portland
Go native - It’s good for you!
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