Alnus

Alnus alnobetula subsp. sinuata (Sitka Alder )
Alnus incana subsp. tenuifolia (Thinleaf Alder )

Amelanchier

Amelanchier alnifolia (Western Serviceberry )
Amelanchier alnifolia 'Regent' (Regent Serviceberry )
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 )

Amorpha

Amorpha nana (Dwarf Wild Indigo )

Aralia

Aralia elata (Angelica Tree )
Aralia elata 'Variegata' (Variegated Angelica Tree)

Aronia

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

Baccharis

Baccharis pilularis (Coyote Bush )

Berberis

Berberis fremontii (Fremont Barberry )

Ceanothus

Ceanothus × delilianus 'Henri Desfosse' (Henri Desfosse Ceanothus)
Ceanothus integerrimus (Deer Brush)
Ceanothus sanguineus (Redstem 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 'Red Dragon' (Red Dragon Hazelnut)
Corylus avellana 'Rote Zeller' (Rote Zeller Hazelnut)
Corylus cornuta var. californica (Western Hazel )

Crataegus

Crataegus columbiana (Columbia Hawthorn)
Crataegus douglasii (Douglas Hawthorn )
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 (Witchhazel)
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 discolor (Oceanspray )
Holodiscus dumosus (Mountain Spray)
Holodiscus microphyllus (Small-leaved Creambush)

Hovenia

Hovenia dulcis (Japanese Raisintree )

Itea

Itea virginica (Sweetspire )
Itea virginica 'Henrys Garnet' (Henry's Garnet Sweetspire)
Itea virginica Little Henry® (Little Henry Sweetspire)

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 'Picta' (Variegated 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 fusca (Western Crabapple )
Malus sargentii (Sargent Crabapple )
Malus transitoria (Transitoria Crabapple )

Menziesia

Menziesia ferruginea (Rusty Menziesia )

Neviusia

Neviusia cliftonii (Shasta Snowwreath)

Oplopanax

Oplopanax horridus (Devil's Club)

Paeonia

Paeonia lutea subsp. ludlowii (Tibetan Peony )
Paeonia suffruticosa (Tree Peony )

Parrotia

Parrotia persica (Persian Parrotia )

Parrotiopsis

Parrotiopsis jacquemontiana (No English common name )

Photinia

Photinia villosa (Oriental Photinia)

Physocarpus

Physocarpus capitatus (Western Ninebark )
Physocarpus malvaceus (Mallow Ninebark )
Physocarpus opulifolius (Common Ninebark)
Physocarpus opulifolius 'Dart's Gold' (Dart's Gold Ninebark )
Physocarpus opulifolius Diabolo® (Diabolo Ninebark )
Physocarpus opulifolius 'Luteus' (Luteus Ninebark )
Physocarpus opulifolius Summer Wine™ (Summer Wine Ninebark )

Poncirus

Poncirus trifoliata (Trifoliate Orange )
Poncirus trifoliata 'Flying Dragon' (Flying Dragon Trifoliate Orange)

Prunus

Prunus americana (Wild Plum )
Prunus besseyi (Sand Cherry )
Prunus × cistena (Purpleleaf Sandcherry )
Prunus emarginata (Bitter Cherry )
Prunus fruticosa (Steppe Cherry )
Prunus glandulosa (Dwarf Flowering Almond)
Prunus prostrata (Rock Cherry )
Prunus subcordata (Klamath Plum )
Prunus virginiana 'Canada Red' (Canada Red Chokecherry)
Prunus virginiana var. demissa (Western Chokecherry)
Prunus virginiana var. virginiana (Common Chokecherry)

Pterostyrax

Pterostyrax hispida (Epaulette Tree )

Rhododendron (defines evaluations)

Rhododendron Tri Lights™ (Tri-Lights Azalea)