Cedrus deodara 'Nana' Cedrus libani ssp. atlantica 'Glauca Pendula'
Celastrus orbiculatus Celtis sinensis 'Green Cascade'
Cephalanthus occidentalis Cephalanthus occidentalis 'SMCOSS (Sugar Shack®)'
Cephalotaxus fortunei Cephalotaxus harringtonia
Cephalotaxus harringtonia 'Fastigiata' Cephalotaxus harringtonia 'Korean Gold'
Cephalotaxus harringtonia 'Prostrata' Cephalotaxus harringtonia var. drupacea 'Duke Gardens'
Cephalotaxus harringtonia var. nana Cephalotaxus sinensis
Ceratostigma willmottianum Ceratozamia spp.
Cercis chinensis Cercis chinensis 'Alba'
Cercis griffithii Cercis occidentalis
Cercis siliquastrum Cercocarpus ledifolius var. intricatus
Cercocarpus montanus var. blancheae Cestrum aurantiacum
Cestrum cultum x Cestrum elegans
Cestrum elegans var. smithii Cestrum fasciculatum 'Newellii'
Chaenomeles 'Spit Fire' Chaenomeles cathayensis
Chaenomeles japonica Chaenomeles speciosa
Chaenomeles speciosa 'Chobui' Chaenomeles speciosa 'Contorta'
Chaenomeles speciosa 'Double Take™ Orange Storm' Chaenomeles speciosa 'Double Take™ Pink Storm'
Chaenomeles speciosa 'Double Take™ Scarlet Storm' Chaenomeles speciosa 'Fire Dance'
Chaenomeles speciosa 'Jet Trail' Chaenomeles speciosa 'Sargentii'
Chaenomeles speciosa 'Scarff's Red' Chaenomeles speciosa 'Texas Scarlet'
Chaenomeles speciosa 'Toyo-Nishiki' Chaenomeles x superba 'Cameo'
Chaenomeles x superba 'Crimson & Gold' Chamaecyparis lawsoniana 'Aurea Densa'
Chamaecyparis obtusa 'Confucious' Chamaecyparis obtusa 'Coralliformis'
Chamaecyparis obtusa 'Elmwood Gold' Chamaecyparis obtusa 'Fernspray Gold'
Chamaecyparis obtusa 'Flabelliformis' Chamaecyparis obtusa 'Gracilis'
Chamaecyparis obtusa 'Kosteri' Chamaecyparis obtusa 'Mariesii'
Chamaecyparis obtusa 'Nana' Chamaecyparis obtusa 'Nana Aurea'
Chamaecyparis obtusa 'Nana Gracilis' Chamaecyparis obtusa 'Nana Lutea'
Chamaecyparis obtusa 'Nana Tonia' Chamaecyparis obtusa 'Reis Dwarf'
Chamaecyparis obtusa 'Rigid Dwarf' Chamaecyparis obtusa 'Sanderi'
Chamaecyparis obtusa 'Spiralis Aurea' Chamaecyparis obtusa 'Split Rock'
Chamaecyparis obtusa 'Verdonii' Chamaecyparis pisifera 'Aurea'
Chamaecyparis pisifera 'Gold Thread' Chamaecyparis pisifera 'Golden Mop'
Chamaecyparis pisifera 'Plumosa Albopicta' Chamaecyparis pisifera 'Plumosa Albopilla'
Chamaecyparis pisifera 'Plumosa Aurea Compacta' Chamaecyparis pisifera 'Plumosa Aureavariagata Nana'
Chamaecyparis pisifera 'Silver Lode' Chamaecyparis pisifera 'Snow'
Chamaecyparis thyoides 'Andelyensis' Chamaecyparis thyoides 'Conica'
Chamaecyparis thyoides 'Ericoides' Chamaecyparis thyoides 'Heatherbun'
Chamelaucium floriferum Chamelaucium uncinatum
Chilopsis linearis Chimonanthus praecox
Chiococca alba Choisya ternata
Choisya ternata 'Sundance' Chorizema x 'Bush Flame'
Chorizema cordata Chorizema cordata x illicifolia
Chorizema ilicifolia Chrysobalanus icaco
Chrysothamnus paniculatus