Calycanthus x 'Venus'

Camellia sisensis 'Large Leaf'

Caragana pygmaea

Caryopteris 'Dark Knight'

Caryopteris 'Emerald Crest'

Caryopteris 'Sunshine Blue II'

Caryopteris clandonensis 'Sapphire Surf'

Caryopteris incana 'Pavilion Blue'

Caryopteris x clandonensis 'Beekeeper'

Ceanothus hyrbid 'Lemon Ice'

Ceanothus thyrsiflorus 'Victoria'

Cedrus deodara 'Feelin' Blue'

Cephalanthus occidentalis 'Bailoptics'

Cercocarpus ledifolius

Chaenomeles superba 'Jet Trail'

Choisya ternata

Choisya ternata 'Sundance'

Choisya x dewitteana 'Aztec Pearl'

Cistus 'Greyswood Pink'

Cistus 'Merrist Wood Cream'

Cistus 'Sunset'

Cistus ladanifer 'Frank Birch'

Cistus x corbariensis

Clethra 'Hummingbird'

Clethra alnifolia 'Ruby Spice'

Clethra alnifolia 'Summer Sparkler'

Cornus alba 'Bud's Yellow'

Cornus sanguinea 'Midwinter Fire'

Cornus sericea 'Cardinal'

Cornus stolonifera