Brachyglottis

Brachyglottis greyi (Daisy Bush)

Buxus

Buxus microphylla var. koreana (Korean Littleleaf Boxwood)
Buxus microphylla var. koreana 'Winter Gem' (Winter Gem Boxwood)
Buxus microphylla var. koreana 'Wintergreen' (Wintergreen Boxwood)
Buxus sempervirens (Common Boxwood )
Buxus sempervirens 'Arborescens' (Truetree Boxwood)
Buxus sempervirens 'Aurea-pendula' (Aurea-pendula Boxwood )
Buxus sempervirens 'Latifolia Maculata' (Latifolia Maculata Boxwood)
Buxus sempervirens 'Suffruticosa' (Edging Boxwood)
Buxus sempervirens 'Variegata' (Variegata Boxwood)

Callicarpa

Callicarpa americana (American Beautyberry )
Callicarpa bodinieri 'Profusion' (Profusion Beautyberry)
Callicarpa dichotoma (Purple Beautyberry)
Callicarpa dichotoma 'Albifructus' (White Fruited Beautyberry)
Callicarpa japonica (Japanese Beautyberry)

Calluna

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

Camellia

Camellia japonica (Japanese Camellia)
Camellia sasanqua (Sasanqua Camellia)

Carissa

Carissa macrocarpa (Natal Plum)

Carya

Carya illinoinensis (Pecan)
Carya laciniosa (Shellbark Hickory)
Carya ovata (Shagbark Hickory)

Castanea

Castanea dentata (American Chestnut)
Castanea mollissima (Chinese Chestnut)
Castanea sativa (European Chestnut )

Ceanothus

Ceanothus 'Dark Star' (Dark Star Ceanothus)
Ceanothus cuneatus (Narrowleaf Buckbrush )
Ceanothus cuneatus var. rigidus 'Snowball' (Snowball Ceanothus)
Ceanothus gloriosus (Point Reyes Ceanothus )
Ceanothus griseus var. horizontalis (Carmel Creeper Ceanothus)
Ceanothus griseus var. horizontalis 'Yankee Point' (Yankee Point Ceanothus)
Ceanothus impressus (Santa Barbara Ceanothus)
Ceanothus integerrimus (Deer Brush)
Ceanothus sanguineus (Redstem Ceanothus )
Ceanothus thyrsiflorus (Blue Blossom)
Ceanothus thyrsiflorus 'El Dorado' (El Dorado Ceanothus )
Ceanothus velutinus (Snowbrush )

Celastrus

Celastrus scandens (American Bittersweet )

Celtis

Celtis occidentalis (Common Hackberry)
Celtis pallida (Desert Hackberry )
Celtis reticulata (Netleaf Hackberry )
Celtis sinensis (Japanese Hackberry )

Cephalanthus

Cephalanthus occidentalis (Buttonbush )

Chaenomeles

Chaenomeles speciosa (Flowering Quince)

Chionanthus

Chionanthus retusus (Chinese Fringetree)
Chionanthus virginicus (White Fringetree)

Choisya

Choisya ternata (Mexican Orange)
Choisya ternata 'Sundance' (Sundance Mexican Orange )

Chrysolepis

Chrysolepis chrysophylla (Golden Chinkapin )

Cinnamomum

Cinnamomum camphora (Camphor Tree )

Clerodendrum

Clerodendrum trichotomum (Harlequin Glorybower )
Clerodendrum trichotomum 'Stargazer' (Stargazer Harlequin Glorybower)

Clethra

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

Cornus

Cornus 'Eddies White Wonder' (Eddie's White Wonder Dogwood)
Cornus 'Porlock' (Porlock Dogwood)
Cornus Venus® (Venus Dogwood)
Cornus alba (Tatarian Dogwood )
Cornus alternifolia (Pagoda Dogwood)
Cornus amomum (Silky Dogwood)
Cornus canadensis (Bunchberry)
Cornus capitata (Evergreen Dogwood )
Cornus controversa (Giant Dogwood)
Cornus controversa 'June Snow' (June Snow Giant Dogwood)
Cornus drummondii (Rough-leaved Dogwood)
Cornus × elwinortonii Starlight® (Starlight Dogwood)
Cornus florida (Flowering Dogwood )
Cornus florida 'Golden Nugget' (Golden Nugget Dogwood)
Cornus florida 'Welchii' (Tricolor Dogwood )
Cornus kousa (Kousa Dogwood )
Cornus kousa 'Gold Star' (Gold Star Dogwood)
Cornus kousa 'Radiant Rose' (Radiant Rose Dogwood)
Cornus kousa Scarlet Fire® (Scarlet Fire Dogwood)
Cornus kousa 'Sunsplash' (Sunsplash Dogwood)
Cornus kousa 'Wolf Eyes' (Wolf Eyes Dogwood)
Cornus mas (Corneliancherry Dogwood)
Cornus nuttallii (Pacific Dogwood )
Cornus nuttallii 'Goldspot' (Goldspot Dogwood, )
Cornus officinalis (Japanese Cornelian Dogwood )
Cornus racemosa (Gray Dogwood )
Cornus × rutgersensis Celestial® (Celestial Dogwood)
Cornus sanguinea (Bloodtwig Dogwood)
Cornus sanguinea 'Midwinter Fire' (Midwinter Fire Dogwood)
Cornus sericea (Redosier Dogwood )
Cornus sericea subsp. occidentalis (Western Dogwood)
Cornus sericea subsp. sericea (Redosier Dogwood)
Cornus sericea subsp. sericea 'Argenteo-marginata' (Variegated Dogwood )
Cornus sericea subsp. sericea 'Elegantissima' (Variegated Tatarian Dogwood )
Cornus sericea subsp. sericea 'Flaviramea' (Golden Twig Dogwood )
Cornus sericea subsp. sericea 'Hessei' (Siberian Dogwood )
Cornus sericea subsp. sericea Ivory Halo™ (Ivory Halo Dogwood )

Corylopsis

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

Corylus

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