Amelanchier

Amelanchier canadensis (Shadblow )
Amelanchier × grandiflora (Apple Serviceberry)
Amelanchier × grandiflora Autumn Brilliance® (Autumn Brilliance Serviceberry)
Amelanchier × grandiflora 'Forest Prince' (Forest Prince Serviceberry)
Amelanchier laevis (Allegheny Serviceberry )

Aronia

Aronia arbutifolia (Red Chokeberry)
Aronia arbutifolia 'Brilliantissima' (Brilliant Red Chokeberry)
Aronia melanocarpa (Black Chokeberry)

Ceanothus

Ceanothus × delilianus 'Henri Desfosse' (Henri Desfosse Ceanothus)

Chaenomeles

Chaenomeles speciosa (Flowering Quince)

Clethra

Clethra alnifolia (Summersweet )
Clethra alnifolia 'Ruby Spice' (Ruby Spice Summersweet )

Corylopsis

Corylopsis (Winterhazel)
Corylopsis pauciflora (Buttercup Winterhazel)
Corylopsis spicata (Spike Winterhazel)

Corylus

Corylus americana (American Hazel )
Corylus avellana (Hazelnut )
Corylus avellana 'Contorta' (Contorted Filbert )
Corylus avellana 'Rote Zeller' (Rote Zeller Hazelnut)

Crataegus

Crataegus germanica (Medlar)
Crataegus laevigata (English Hawthorn )
Crataegus monogyna 'Flexuosa' (Contorted Singleseed Hawthorn)

Enkianthus

Enkianthus campanulatus (Redvein Enkianthus)

Fothergilla

Fothergilla gardenii (Dwarf Fothergilla)
Fothergilla gardenii 'Jane Platt' (Jane Platt Fothergilla)
Fothergilla major (Large Fothergilla )

Franklinia

Franklinia alatamaha (Franklin Tree )

Hamamelis

Hamamelis × intermedia 'Arnold Promise' (Arnold Promise Witchhazel)
Hamamelis × intermedia 'Diane' (Diane Witchhazel)
Hamamelis × intermedia 'Jelena' (Jelena Witchhazel)
Hamamelis × intermedia 'Primivera' (Primivera Witchhazel)
Hamamelis vernalis (Vernal Witchhazel )
Hamamelis virginiana (Common Witchhazel)

Hibiscus

Hibiscus syriacus (Rose of Sharon )

Holodiscus

Holodiscus dumosus (Mountain Spray)

Hovenia

Hovenia dulcis (Japanese Raisintree )

Kerria

Kerria japonica (Japanese Kerria )
Kerria japonica 'Albiflora' (White Japanese Kerria, )
Kerria japonica 'Golden Guinea' (Golden Guinea Japanese Kerria)
Kerria japonica 'Kin Kan' (Kin Kan Japanese Kerria)
Kerria japonica 'Pleniflora' (Double Japanese Kerria)

Lavatera

Lavatera thuringiaca (Tree Lavatera)

Leucothoe

Leucothoe racemosa (Sweetbells Leucothoe )

Loropetalum

Loropetalum chinense (Chinese Fringe-flower)
Loropetalum chinense var. rubrum 'Daybreak's Flame' (Daybreak's Flame Fringe-flower)

Malus

Malus sargentii (Sargent Crabapple )
Malus transitoria (Transitoria Crabapple )

Neviusia

Neviusia cliftonii (Shasta Snowwreath)

Parrotia

Parrotia persica (Persian Parrotia )

Parrotiopsis

Parrotiopsis jacquemontiana (No English common name )

Photinia

Photinia villosa (Oriental Photinia)

Physocarpus

Physocarpus opulifolius (Common Ninebark)
Physocarpus opulifolius 'Dart's Gold' (Dart's Gold Ninebark )
Physocarpus opulifolius 'Luteus' (Luteus Ninebark )

Prunus

Prunus americana (Wild Plum )
Prunus besseyi (Sand Cherry )
Prunus fruticosa (Steppe Cherry )
Prunus glandulosa (Dwarf Flowering Almond)
Prunus prostrata (Rock Cherry )
Prunus virginiana 'Canada Red' (Canada Red Chokecherry)
Prunus virginiana var. virginiana (Common Chokecherry)

Pterostyrax

Pterostyrax hispida (Epaulette Tree )

Rhododendron (defines evaluations)

Rhododendron Tri Lights™ (Tri-Lights Azalea)

Ribes

Ribes × gordonianum (Gordon's Currant)
Ribes malvaceum (Chaparral Currant)
Ribes odoratum (Golden Currant )

Salix

Salix caprea 'Kilmarnock' (Kilmarnock Willow)

Spiraea

Spiraea × arguta (Garland Spirea)
Spiraea betulifolia 'Tor' (Tor Birchleaf Spirea)
Spiraea fritschiana (Korean Spirea)
Spiraea japonica (Japanese Spirea)
Spiraea japonica 'Anthony Waterer' (Anthony Waterer Spirea )
Spiraea japonica 'Bumalda' (Bumald Spirea)
Spiraea japonica Limemound® (Limemound Spirea)
Spiraea japonica 'Little Princess' (Little Princess Spirea)
Spiraea japonica var. alpina (Daphne Spirea)
Spiraea miyabei (Miyabe Spirea)
Spiraea nipponica (Nippon Spirea)
Spiraea prunifolia 'Plena' (Bridalwreath Spirea)
Spiraea thunbergii (Thunberg Spirea)
Spiraea thunbergii 'Fujino Pink' (Fujino Pink Spirea)
Spiraea thunbergii Mellow Yellow™ (Mellow Yellow Spirea, )
Spiraea × vanhouttei (Van Houtte Spirea )

Stachyurus

Stachyurus praecox (Early Spiketail)

Stewartia

Stewartia serrata (Sawtooth Stewartia)

Styrax

Styrax japonicus (Japanese Snowbell)
Styrax japonicus 'Evening Light' (Evening Light Japanese Snowbell)
Styrax japonicus 'Pink Chimes' (Pink Chimes Japanese Snowbell )

Symplocos

Symplocos paniculata (Sapphire Berry )

Vaccinium

Vaccinium corymbosum (Highbush Blueberry)