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Bloom Calendar This ‘Bloom Calendar’ lists flowering times in chronological order, by month. Please note that the bloom times listed are for our Mid-Atlantic location. Flowers will bloom later in the North and earlier in the South. Name January - March Description Hamamelis vernalis sp. - red calyx, yellow petals, effective for 3-4 weeks Hamamelis x intermedia ‘Firecracker’ - coppery red-orange ‘Arnold Promise’ - yellow flowers, appear in February and last into March *H. x intermedia flowers often last January into mid March, depending on cv. late March |----early March March *C. officinalis almost always opens 1-2 weeks before C. mas Cornus officinalis sp. - yellow, lasts early March to April Cornus mas ‘Golden Glory’ - yellow, vigorous, flowers more abundantly than sp. Magnolia stellata ‘Royal Star’ - pink buds, white flowers ‘Waterlily’- pink-flushed buds, white flowers, very fragrant *‘Waterlily’ & ‘Centennial’ flower 1 to 2 ‘Centennial’ - white buds, white flower with pink tinge weeks later than other star magnolias. Prunus subhirtella var. pendula - deep pink bud, flowers open light pink and fades to almost white Prunus x yedoensis ‘Yoshino’ - white flowers tinged with pink, lightly fragra *’Yoshino’ blooms a week before ‘Kwanzan’ Prunus serrulata ‘Kwanzan’ - pink, double flower with 30 petals |----------------------------------------------------mid-April |------------early April April Viburnum burkwoodii sp. - flowers late March to early April ‘Conoy’- pink buds, white flower, non-fragrant ‘Mohawk’- dark red buds, abundant red-specked white flowers, fragrant Cercis reniformis ‘Oklahoma’ - pink buds, wine-red flowers Cornus florida ‘Cherokee Chief’ - ruby-red bracts, blooms a few days later than white form Magnolia ‘Ann’ - deep rose-red flowers, light pink inside *’Ann’ blooms earlier than ‘Betty’ ‘Betty’ - flowers deep purple-red, light purple inside, very large, mid to late April Amelanchier x grandiflora ‘Galaxy’ - dark red-purple buds, purple flower with a light rose-purple inside. *’Galaxy’ flowers last several weeks ‘Autumn Brilliance’ - white, followed by edible blue-black fruits in June Cercis canadensis sp. - red-purple buds, rosy pink flowers with purple tinge before leaves emerge, effective 2-3 weeks ‘Pink Heartbreaker’ - pink, weeping ‘Lavender Twist’- red-purple buds, rosy- pink flowers, weeping ‘Forest Pansy’ - rose-purple buds and flowers *’Forest Pansy’ blooms later than the species Syringa meyeri ‘Palibin’ - red-purple buds, white pink flowers, soft fragrance, covers plant, effective 10-14 days, lasts mid April to mid May *all Syringa flowers last longer with a cooler spring Spiraea x vanhouttei sp. - white flowers borne on umbels ‘Renaissance’- improved version with better pest resistance, white flowers mid April into May. Viburnum plicatum & V. plicatum var. tomentosum ‘Popcorn’ - white snowball flowers in profusion, blooms earlier than other V. plicatum cvs. ‘Summer Snowflake’ - smaller flowers than species, flowers prominently in spring ’Summer Snowlflake’ flowers sporadically into November ‘Shasta’ & ‘Mariesii’ - very similar with pure white flowers, ‘Shasta’ supposedly has a larger flower, flowers last May to July Name Description |---------------late April |-----------mid April April Viburnum ‘Eskimo’- abundant white snowball inflorescences, covers plant *very showy Prunus serrulata ‘Snow Goose’- white, bloom before or with foliage Viburnum carlesii cvs. - pink/red buds, white semi-snowball flowers, fragrant ‘Diana’- red buds, white flowers turn pink, fragrant Viburnum x rhytidophylloides ‘Alleghany’- abundant yellow-white flowers, evergreen Viburnum x carlcephalum sp. - pink buds, white flowers, fragrant, ‘lumpy’ inflorescences Syringa vulgaris sp. - purple flowers, fragrant, gone by Mother’s Day in D.C. area ‘Ludwig Spaeth’- deep purple single flowers *dependable flowering ‘Sensation’ - deep purple single flowers with white margins ‘Charles Joly’ - magenta dbl flowers, very fragrant ‘Katherine Havemeyer’- lavender pink, large dbl flowers *’K.H.’ blooms longer than other cvs. sp. - white, rarely pale rose, bell-shaped, emerges before or with the leaves Halesia tetraptera |----------------late May |-----------------------------early May May Styrax japonicus ‘Minuet’ - light purple buds, light lavender flowers ‘Miss Canada’ - deep red buds, bright rose-pink flowers Sp. - white bell-shaped flowers with yellow stamens, slightly fragrant Magnolia ‘Jane’ - dark purple flowers, white inside Viburnum dentatum ‘Blue Muffin’ - white flowers, loaded with blue fruits in summer Viburnum ‘Chesapeake’ - pink buds, white flowers, fragrant Magnolia virginiana sp. - creamy white flowers, very fragrant Cornus kousa ‘Weaver’s Weeping’ - white, weeping Syringa patula ‘Miss Kim’ - purple buds, icy blue flowers, pleasing fragrance Syringa x josiflexa ‘James Macfarlane’ - bright pink flowers, single, light fragrance Physocarpus opulifolius cvs - white or pink flowers over bronze-purple foliage Viburnum rhytidophyllum Syringa x prestoniae ‘Cree’ - pink buds, abundant white flowers on large cymes ‘Donald Wyman’ - red-purple buds, deep pink to light purple flowers Aesculus octandra sp. - yellow with a green tinge, erect 6-7” long panicles *blooms earlier than A. x carnea sp. - yellow with green, on long panicles ‘Briotii’ - dark red flowers, deeper red than the species ‘Ft. McNair’ - pink flowers with yellow throats Syringa x prestoniae Aesculus x. carnea *a late blooming Magnolia * blooms earlier than other C. kousa Fall |-----------July |-------June Summer & Fall Cornus kousa var. chinensis - creamy white, larger flowers than sp., bloom after leaves are out ‘Wolf Eyes’- creamy white flowers, variegated leaves with white margins Cotinus coggygria ‘Royal Purple’ - smoky pink hairy panicles through summer Hydrangea quercifolia cvs. - white flowers fade to pink to brown, fragrant Hydrangea paniculata Hibiscus syriacus cvs. - white, changing to pink to purplish pink, borne on pyramidal panicles approximately 6-8” long. *lasts well into September cvs. - bloom July through September, many cultivars available Heptacodium miconioides sp. - creamy white, fragrant, attracts butterflies & pollinators Hamamelis virginiana sp. - yellow, fragrant, lasts 2-4 weeks, usually during fall color Heptacodium miconioides sp. - pink sepals last from October into November Ilex verticillata cvs. - colorful berries in December, last into February *lasts through July