Acer

Acer ginnala (Amur Maple)
Acer monspessulanum (Montpellier Maple)
Acer opalus subsp. obtusatum (Bosnian Maple)
Acer platanoides (Norway Maple)
Acer platanoides 'Crimson King' (Crimson King Norway Maple)
Acer platanoides 'Deborah' (Deborah Norway Maple)
Acer platanoides 'Schwedleri' (Schwedleri Norway Maple)

Azara

Azara microphylla (Boxleaf Azara)

Berberis

Berberis Emerald Carousel™ (Emerald Carousel Barberry)
Berberis buxifolia 'Nana' (Dwarf Magellan Barberry )
Berberis darwinii (Darwin Barberry)
Berberis × gladwynensis 'William Penn' (William Penn Barberry)
Berberis jamesiana (James Barberry)
Berberis julianae (Wintergreen Barberry)
Berberis × mentorensis (Mentor Barberry)
Berberis pruinosa (Pruinosa Barberry)
Berberis replicata (Evergreen Barberry)
Berberis × stenophylla (Rosemary Barberry)
Berberis × stenophylla 'Irwinii' (Irwin Rosemary Barberry)
Berberis × stenophylla 'Nana' (Dwarf Rosemary Barberry)
Berberis thunbergii (Japanese Barberry)
Berberis thunbergii 'Aurea' (Golden Japanese Barberry)
Berberis thunbergii Golden Nugget™ (Golden Nugget Barberry)
Berberis thunbergii 'Kobold' (Kobold Japanese Barberry)
Berberis thunbergii Sunsation™ (Sunsation Barberry)
Berberis thunbergii var. atropurpurea (Purple (Red) Leafed Japanese Barberry)
Berberis thunbergii var. atropurpurea 'Crimson Pigmy' (Crimson Pigmy Japanese Barberry)
Berberis thunbergii var. atropurpurea 'Golden Ring' (Golden Ring Barberry)
Berberis thunbergii var. atropurpurea 'Rose Glow' (Rose Glow Barberry)
Berberis thunbergii var. atropurpurea Royal Burgundy™ (Royal Burgundy Barberry)
Berberis triacanthophora (Threespine Barberry )
Berberis verruculosa (Warty Barberry)

Brachyglottis

Brachyglottis greyi (Daisy Bush)

Buddleia

Buddleia globosa (Orange Butterfly Bush )
Buddleia × weyeriana 'Honeycomb' (Honeycomb Butterfly Bush)

Chimonanthus

Chimonanthus praecox (Fragrant Wintersweet)

Cinnamomum

Cinnamomum camphora (Camphor Tree )

Cistus

Cistus 'Elma' (Elma Rockrose)

Coleogyne

Coleogyne ramosissima (Blackbrush)

Cornus

Cornus alternifolia (Pagoda Dogwood)
Cornus amomum (Silky Dogwood)
Cornus capitata (Evergreen Dogwood )
Cornus controversa 'June Snow' (June Snow Giant Dogwood)
Cornus mas (Corneliancherry Dogwood)
Cornus officinalis (Japanese Cornelian Dogwood )
Cornus racemosa (Gray Dogwood )

Corylopsis

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

Cotinus

Cotinus coggygria (Common Smoketree )
Cotinus coggygria Golden Spirit™ (Golden Spirit Smoketree)
Cotinus obovatus (American Smoketree )

Daphne

Daphne laureola (Spurge Laurel)

Edgeworthia

Edgeworthia chrysantha (Paper Bush )

Elaeagnus

Elaeagnus umbellata (Autumn Elaeagnus )

Encelia

Encelia farinosa (Brittlebush )

Enkianthus

Enkianthus campanulatus (Redvein Enkianthus)

Ephedra

Ephedra equisetina (Bluestem Joint Fir )
Ephedra fasciculata (Arizona Ephedra )
Ephedra viridis (Green Mormon Tea )

Forestiera

Forestiera pubescens (Desert Olive)

Forsythia

Forsythia × intermedia (Border Forsythia)
Forsythia viridissima (Greenstem Forsythia)
Forsythia viridissima 'Bronxensis' (Bronxensis Greenstem Forsythia)
Forsythia viridissima var. koreana 'Kumson' (Kumson Korean Greenstem Forsythia)

Fremontodendron

Fremontodendron (Flannel Bush )

Genista

Genista lydia (Lydia Broom )
Genista pilosa (Silkyleaf Broom )

Grevillea

Grevillea aquifolium (Holly Grevillea)

Hamamelis

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

Hydrangea

Hydrangea paniculata (Panicle Hydrangea)

Hypericum

Hypericum 'Hidcote' (Hidcote Hypericum)
Hypericum androsaemum (Tutsan)
Hypericum calycinum (Creeping St. John's Wort )
Hypericum kouytchense (Kouytchense Hypericum)

Kerria

Kerria japonica (Japanese Kerria )
Kerria japonica 'Kin Kan' (Kin Kan Japanese Kerria)
Kerria japonica 'Picta' (Variegated Japanese Kerria, )
Kerria japonica 'Pleniflora' (Double Japanese Kerria)

Laurus

Laurus nobilis (Bay Laurel)

Liriodendron

Liriodendron chinense (Chinese Tuliptree)
Liriodendron tulipifera (Tuliptree )
Liriodendron tulipifera 'Aureo-marginatum' (Aureo-marginatum Tuliptree)
Liriodendron tulipifera 'Medio-pictum' (Medio-pictum Tuliptree )

Lonicera

Lonicera japonica (Japanese Honeysuckle)
Lonicera maackii (Amur Honeysuckle )

Magnolia

Magnolia 'Butterflies' (Butterflies Magnolia)
Magnolia 'Elizabeth' (Elizabeth Magnolia)
Magnolia ernestii (Yellow Lily Tree)

Parrotiopsis

Parrotiopsis jacquemontiana (No English common name )

Pittosporum

Pittosporum tobira (Japanese Mock Orange )

Prunus

Prunus serrulata 'Ukon' (Ukon Flowering Cherry)

Punica

Punica granatum (Pomegranate)

Purshia

Purshia stansburiana (Cliffrose)

Quillaja

Quillaja saponaria (Soap-bark Tree )

Rhododendron (defines evaluations)

Rhododendron Tri Lights™ (Tri-Lights Azalea)