Acer

Acer japonicum (Fullmoon Maple)
Acer japonicum 'Aconitifolium' (Fernleaf Fullmoon Maple)
Acer palmatum (Japanese Maple)
Acer palmatum 'Beni komachi' (Beni komachi Japanese Maple)
Acer palmatum 'Bloodgood' (Bloodgood Japanese Maple)
Acer palmatum 'Pixie' (Pixie Japanese Maple)
Acer palmatum 'Sango Kaku' (Coralbark Japanese Maple)
Acer palmatum 'Shaina' (Shaina Japanese Maple)
Acer palmatum 'Sharp's Pygmy' (Sharp's Pygmay Japanese Maple)
Acer palmatum 'Shindeshojo' (Shindeshojo Japanese Maple)
Acer palmatum var. dissectum (Dissected Japanese Maple)
Acer palmatum var. dissectum atropurpureum (Red Dissected Japanese Maple)
Acer palmatum var. dissectum atropurpureum 'Ever Red' (Ever Red Dissected Japanese Maple)
Acer platanoides 'Crimson King' (Crimson King Norway Maple)
Acer platanoides 'Deborah' (Deborah Norway Maple)

Agave

Agave macroacantha (Black-spinned Agave)
Agave parryi (Parry's Agave)

Akebia

Akebia quinata (Five-leaf Akebia )

Albizia

Albizia julibrissin 'Summer Chocolate' (Summer Chocolate Silk Tree)

Amorpha

Amorpha nana (Dwarf Wild Indigo )

Asimina

Asimina triloba (Common Pawpaw )

Aucuba

Aucuba japonica (Japanese Aucuba )
Aucuba japonica 'Mr. Goldstrike' (Mr. Goldstrike Aucuba)
Aucuba japonica 'Picturata' (Picturata Aucuba)
Aucuba japonica 'Variegata' (Gold Dust Plant )

Bauhinia

Bauhinia variegata (Orchid Tree )

Buddleia

Buddleia davidii (Butterfly Bush)

Callicarpa

Callicarpa bodinieri 'Profusion' (Profusion Beautyberry)

Calluna

Calluna vulgaris 'Robert Chapman' (Robert Chapman Scotch Heather)
Calluna vulgaris 'Wickwar Flame' (Wickwar Flame Scotch Heather)

Calycanthus

Calycanthus × 'Aphrodite' (Aphrodite Sweetshrub)
Calycanthus occidentalis (Western Spicebush )

Ceanothus

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

Cercis

Cercis canadensis 'Forest Pansy' (Forest Pansy Redbud)
Cercis chinensis 'Avondale' (Avondale Chinese Redbud)
Cercis occidentalis (Western Redbud )
Cercis siliquastrum (Judus Tree )

Clematis

Clematis (hybrid) (Hybrid Clematis)
Clematis viticella (Italian Clematis)
Clematis viticella 'Polish Spirit' (Polish Spirit Italian Clematis)

Cotinus

Cotinus coggygria 'Royal Purple' (Royal Purple Smoketree)
Cotinus obovatus (American Smoketree )

Daboecia

Daboecia cantabrica (Irish Heath )

Daphne

Daphne mezereum (February Daphne )
Daphne odora 'Mae-Jima' (Mae-Jami Winter Daphne)

Daphniphyllum

Daphniphyllum macropodum (False Daphne )

Dermatophyllum

Dermatophyllum secundiflorum (Mescal Bean )
Dermatophyllum secundiflorum 'Silver Peso' (Silver Peso Mescal Bean )

Disanthus

Disanthus cercidifolius (Redbud Hazel)

Encelia

Encelia farinosa (Brittlebush )

Erica

Erica carnea (Spring Heath )

Euonymus

Euonymus atropurpureus (Eastern Wahoo)

Fraxinus

Fraxinus americana (White Ash )
Fraxinus excelsior (Euopean Ash )
Fraxinus excelsior 'Golden Cloud' (Golden Cloud Ash)
Fraxinus excelsior Golden Desert® (Golden Desert Ash)
Fraxinus oxycarpa 'Raywood' (Raywood Ash )
Fraxinus pennsylvanica (Green Ash)
Fraxinus pennsylvanica Leprechaun™ (Lelprechaun Green Ash)
Fraxinus pennsylvanica Urbanite® (Urbanite Green Ash)
Fraxinus quadrangulata (Blue Ash)

Hamamelis

Hamamelis × intermedia 'Primivera' (Primivera Witchhazel)

Hebe

Hebe 'Pattys Purple' (Patty's Purple Boxleaf Hebe, )
Hebe 'Wiri Joy' (Wiri Joy Hebe)

Hibiscus

Hibiscus syriacus (Rose of Sharon )

Kalmia

Kalmia polifolia (Bog Laurel )

Lagerstroemia

Lagerstroemia (hybrid) (Hybrid Crape Myrtle)
Lagerstroemia indica (Common Crape Myrtle )
Lagerstroemia indica Petite Plum® (Petite Plum Crape Myrtle)

Leycesteria

Leycesteria formosa (Pheasant-eye )

Lonicera

Lonicera tatarica (Tatarian Honeysuckle )

Loropetalum

Loropetalum chinense var. rubrum (Pink-flowering Fringe-flower )

Magnolia

Magnolia Black Tulip™ (Black Tulip Magnolia)
Magnolia 'Galaxy' (Galaxy Magnolia)
Magnolia 'Randy' (Randy Magnolia)
Magnolia 'Star Wars' (Star Wars Magnolia)
Magnolia liliiflora (Lily Magnolia)
Magnolia × soulangeana (Saucer Magnolia)

Malus

Malus 'Prairifire' (Prairifire Crabapple)

Nerium

Nerium oleander (Oleander)

Olneya

Olneya tesota (Ironwood)

Paeonia

Paeonia suffruticosa (Tree Peony )

Pittosporum

Pittosporum tenuifolium (Tawhiwhi )
Pittosporum tenuifolium 'Marjorie Channon' (Marjorie Channon Pittosporum )
Pittosporum tenuifolium 'Silver Sheen' (Silver Sheen Pittosporum )

Rhododendron (defines evaluations)

Rhododendron 'Blue Peter' (Blue Peter Rhododendron)
Rhododendron 'Catawbiense Boursault' (Catawbiense Boursault Rhododendron)
Rhododendron 'Crater Lake' (Crater Lake Rhododendron)
Rhododendron 'Daphnoides' (Daphnoides Rhododendron)
Rhododendron 'Girard's Purple' (Girard's Purple Azalea)
Rhododendron 'Hallelujha' (Hallelujah Rhododendron)
Rhododendron 'Hardijzer Beauty' (Hardijzer Beauty Azaleodendron )
Rhododendron 'Hinode Giri' (Hinode Giri Azalea)
Rhododendron 'Lee's Dark Purple' (Lee's Dark Purple Rhododendron)
Rhododendron 'Pioneer Silvery Pink' (Pioneer Silvery Pink Rhododendron)
Rhododendron 'Purple Splendor' (Purple Splendor Azalea)
Rhododendron 'Purple Splendour' (Purple Splendour Rhododendron)
Rhododendron 'Sappho' (Sappho Rhododendron)
Rhododendron catawbiense (Catawba Rhododendron)
Rhododendron concinnum (Concinnum Rhododendron)