| Calamagrostis X Acutiflora 'England' |
| Calamintha Nepeta 'Blue Cloud' |
| Callicarpa Bodinieri 'Profusion' |
| Callistemon Citrinus 'Splendens' |
| Callistenmon Citrinus 'Red Clusters' |
| Caltha Palustris |
| Caltha Palustris 'Alba' |
| Caltha Palustris 'Multiplex' |
| Caltha Palustris 'Plena' |
| Camassia Leichtlinii |
| Camassia Leichtlinii Bulb |
| Camellia 'Cornish Snow' |
| Camellia Japonica 'April Rose' |
| Camellia Japonica 'Lady Campbell' |
| Camellia Japonica 'Nobilissima' |
| Camellia Williamsii 'Anticipation' |
| Camellia Williamsii 'Debbie' |
| Camellia Williamsii 'Donation' |
| Campanula 'Campbell Blue' |
| Campanula 'Crystal' |
| Campanula 'Kent Belle' |
| Campanula 'Paul Furze' |
| Campanula 'Pink Octopus' |
| Campanula 'Sarasto' |
| Campanula 'Swannables' |
| Campanula Burghaltii |
| Campanula Cochleariifolia |
| Campanula Garganica 'Dickson's Gold' |
| Campanula Glomerata 'Freya' |
| Campanula Glomerata 'Genti White' |
| Campanula Glomerata 'Superba' |
| Campanula Haylodgensis 'Yvonne' |
| Campanula Lactiflora |
| Campanula Lactiflora 'Alba' |
| Campanula Lactiflora 'Border Blues' |
| Campanula Lactiflora 'Loddon Anna' |
| Campanula Lactiflora 'New Hybrids' |
| Campanula Lactiflora 'Pritchard's Variety' |
| Campanula Muralis |
| Campanula Portenschlagiana 'Alba' |
| Campanula Portenschlagina 'Major' |
| Campanula Poscharskyana |
| Campanula Poscharskyana 'E H Frost' |
| Campanula Poscharskyana 'Lisduggan Variety' |
| Campanula Pulla |
| Campanula Punctata 'Elizabeth' |
| Campanula Punctata 'Rubriflora' |
| Campanula Punctata 'Silver Bells' |
| Campanula Rapunculoides 'Alba' |
| Campanula Takesimana 'Alba' |
| Campanula Trachelium |
| Campanula Trachelium 'Alba' |
| Campanula Trachelium Hose-in-hose |
| Cardamine Pentaphylla |
| Carex 'Amazon Mist' |
| Carex Comans 'Bronzita' |
| Carex Elata 'Aurea' |
| Carex Hachijoensis 'Evergold' |
| Caryopteris Clandonensis 'Blue Empire' |
| Caryopteris Clandonensis 'Heavenly Blue' |
| Caryopteris Clandonensis 'Summer Sorbet' |
| Caryopteris Clandonensis 'White Surprise' |
| Caryopteris Clandonensis Weeping Form |
| Caryopteris Divaricata 'Electrum' |
| Catalpa Bignonioides 'Aurea' |
| Ceanothus 'Blue Mound' |
| Ceanothus 'Puget Blue' |
| Ceanothus Arboreus 'Trewithian Blue' |
| Ceanothus Thyrsiflorus 'Repens' |
| Ceanothus Thyrsiflorus 'Skylark' |
| Cedrus Deodara |
| Centaurea Montana |
| Centaurea Montana 'Alba' |
| Centaurea Montana 'Carnea' |
| Centranthus Ruber 'Alba' |
| Centranthus Ruber 'Coccineus' |
| Cephalaria Gigantea |
| Cephalaria Gigantea 'Variegata' |
| Cerastium Tomentosum |
| Ceratostigma Plumbaginoides |
| Ceratostigma Willmottianum |
| Ceratostigma Willmottianum 'Forest Blue' |
| Ceratostigma Willmottianum 'Sapphire Ring' |
| Cercidiphyllum Japonicum |
| Chaenomeles Japonica 'Fascination' |
| Chaenomeles Speciosa 'Geisha Girl' |
| Chaenomeles Speciosa 'Toyo Nishiki' |
| Chaenomeles Superba 'Crimson & Gold' |
| Chaenomeles Superba 'Jet Trail' |
| Chaenomeles Superba 'Pink Lady' |
| Chaenorhinum Origanifolium 'Blue Dream' |
| Chaerophyllum Hirsuteum 'Roseum' |
| Chamaecyparis Lawsoniana 'Minima Glauca' |
| Chamaecyparis Obtusa 'Gold Nuggets' |
| Chamaecyparis Obtusa 'Karamachiba' |
| Chamaecyparis Obtusa 'Kerdalo' |
| Chamaecyparis Obtusa 'Lucas' |
| Chamaecyparis Pisifera 'Boulevard' |
| Chamaecyparis Pisifera 'Plumosa Aurea' |
| Chamaecyparis Pisifera 'Plumosa Rogersii' |
| Chamaecyparis Pisifera 'Snowflake' |
| Chamaecyparis Pisifera 'Squarossa Lombarts' |
| Chamaemelum Nobile 'Flore-plena' |
| Chelone Glabra (Alba) |
| Chelone Obliqua |
| Chelone Obliqua 'Pink Sensation' |
| Chelonopsis Yagiharana |
| Chicorium Intybus |
| Choisya Ternata |
| Choisya Ternata 'Gold Fingers' |
| Choisya Ternata 'Sundance' |
| Choysia Ternata 'White Dazzler' |
| Chrysanthemum 'Alison' |
| Chrysanthemum 'Angela Blundell' |
| Chrysanthemum 'Anne Ratsey' |
| Chrysanthemum 'Apollo' |
| Chrysanthemum 'Autumn Blaze' |
| Chrysanthemum 'Beechcroft' |
| Chrysanthemum 'Bretforton Road' |
| Chrysanthemum 'Brietners Supreme' |
| Chrysanthemum 'Burnt Orange' |
| Chrysanthemum 'Carmine Blush' |
| Chrysanthemum 'Cawthorne' |
| Chrysanthemum 'Chelsea Physic Garden' |
| Chrysanthemum 'Christmas' |
| Chrysanthemum 'Clara Curtis' |
| Chrysanthemum 'Colsterworth' |
| Chrysanthemum 'Cottage Apricot' |
| Chrysanthemum 'Cottage Lemon' |
| Chrysanthemum 'Cousin Joan' |
| Chrysanthemum 'Daniel Cooper' |
| Chrysanthemum 'Dee Gem' |
| Chrysanthemum 'Duchess Of Edinburgh' |
| Chrysanthemum 'Dulwich Pink' |
| Chrysanthemum 'Early Yellow' |
| Chrysanthemum 'Elaines Hardy White' |
| Chrysanthemum 'Emporer Of China' |
| Chrysanthemum 'Enbee Wedding Ruby' |
| Chrysanthemum 'Esther' |
| Chrysanthemum 'French Rose' |
| Chrysanthemum 'Gold Marianne' |
| Chrysanthemum 'Golden Greenheart' |
| Chrysanthemum 'Herbstbrokat' |
| Chrysanthemum 'Innocence' |
| Chrysanthemum 'Jolie Rose' |
| Chrysanthemum 'Jules La Graver' |
| Chrysanthemum 'Julia Peterson' |
| Chrysanthemum 'Margery Fish' |
| Chrysanthemum 'Marion' |
| Chrysanthemum 'Martin Bell' |
| Chrysanthemum 'Mei-kyo' |
| Chrysanthemum 'Mrs Jessie Cooper' |
| Chrysanthemum 'Nantyderry Sunshine' |
| Chrysanthemum 'Paul Boissier' |
| Chrysanthemum 'Picasso' |
| Chrysanthemum 'Poesie' |
| Chrysanthemum 'Purleigh White' |
| Chrysanthemum 'Rose Madder' |
| Chrysanthemum 'Ruby Mound' |
| Chrysanthemum 'Ruby Raynor' |
| Chrysanthemum 'Samba' |
| Chrysanthemum 'Schaffhausen' |
| Chrysanthemum 'Schweizwerland' |
| Chrysanthemum 'Shining Light' |
| Chrysanthemum 'Southway Shimmer' |
| Chrysanthemum 'Sweetheart Pink' |
| Chrysanthemum 'Talbot Parade Chestnut' |
| Chrysanthemum 'Tapestry Rose' |
| Chrysanthemum 'Uri' |
| Chrysanthemum 'Vagabond Prince' |
| Chrysanthemum 'Wedding Sunshine' |
| Chrysanthemum 'Winnings Red' |
| Chrysanthemum From The Wye Valley |
| Chrysanthemum Rubella No 5 |
| Chrysogonum Virginianum |
| Chrysosplenum Davidianum |
| Chrysosplenum Macrophyllum |
| Chrysosplenum Macrophyllum Green Flowered Form |
| Cimicifuga (Actaea) 'Pink Spike' |
| Cimicifuga (Actaea) Racemosa Var. Cordifolia |
| Cimicifuga (Actaea) Simplex 'Pritchard's Variety' |
| Cimicifuga (Actaea) Simplex Var. Simplex 'Brunette' |
| Cistus 'Silver Pink' |
| Cistus 'Sunset' |
| Cistus Corbariensis |
| Clematis 'Annabelle' |
| Clematis 'Ernest Markham' |
| Clematis Armandii |
| Clematis Armandii 'Snowdrift' |
| Clematis Florida Var. Sieboldiana |
| Clematis Montana 'Elizabeth' |
| Clematis Montana 'Freda' |
| Clematis Montana 'Giant Star' |
| Clematis Montana 'Marjorie' |
| Clematis Montana 'Mayleen' |
| Clematis Montana 'Tetrarose' |
| Clematis Montana Var Rubens |
| Clematis Montana Var. Wilsonii |
| Clematis Tangutica |
| Clematis Viticella 'Etoile Violette' |
| Commelina Coelestis 'Hopleys Variegated' |
| Commelina Coelestis 'Rhapsody' |
| Commelina Robusta |
| Convallaria Majalis |
| Convallaria Majalis 'Aurea' |
| Convallaria Majalis 'Golden Slippers' |
| Convallaria Majalis 'Grandiflora' |
| Convallaria Majalis 'Hardwick Hall' |
| Convallaria Majalis 'Prolificans' |
| Convallaria Majalis 'Rosea' |
| Coprosma 'Midnight Martinii' |
| Coprosma 'Pacific Night' |
| Coptis Japonica V. Major |
| Cordyline Australis 'Atropurpurea' |
| Cordyline Australis 'Can Can' |
| Cordyline Australis 'Festival Burgundy' |
| Cordyline Australis 'Polka' |
| Cordyline Australis 'Salsa' |
| Cordyline Australis 'Torbay Dazzler' |
| Coreopsis 'Cosmic Eye' |
| Coreopsis 'Enchanted Eve' |
| Coreopsis 'Sun Kiss' |
| Coreopsis 'Uptick Cream Red Eye' |
| Coreopsis 'Uptick Gold And Bronze |
| Coreopsis 'Uptick Gold And Bronze' |
| Coreopsis Grandiflora 'Sunfire' |
| Coreopsis Grandiflora 'Sunny Day' |
| Coreopsis Lanceolata 'Early Sunrise' |
| Coreopsis Lanceolata 'Walter' |
| Coreopsis Major |
| Coreopsis Rosea 'Heavens Gate' |
| Coreopsis Verticillata 'Full Moon' |
| Coreopsis Verticillata 'Moonbeam' |
| Coreopsis Verticillata 'Route 66' |
| Coreopsis Verticillata 'Zagreb' |
| Cornus Alba 'Aurea' |
| Cornus Alba 'Baton Rouge' |
| Cornus Alba 'Elegantissima' |
| Cornus Alba 'Hedgerow Gold' |
| Cornus Alba 'Kesselringii' |
| Cornus Alba 'Sibirica Variegata' |
| Cornus Alba 'Spaethii' |
| Cornus Alba 'Westonbirt' |
| Cornus Canadensis |
| Cornus Controversa 'Variegata' |
| Cornus Mas |
| Cornus Sanguinea 'Midwinter Fire' |
| Cornus Stolonifera 'Flaviramea' |
| Cornus Stolonifera 'Kelseys Dwarf' |
| Corokia Cotoneaster |
| Corokia Virgata 'Red Wonder' |
| Corokia Virgata 'Sunsplash' |
| Cortaderia Selloana 'Silver Stripe' |
| Corydalis 'Blue Heron' |
| Corydalis 'Craigton Blue' |
| Corydalis 'Kingfisher' |
| Corydalis 'Rainier Blue' |
| Corydalis Solida |
| Corydalis Solida 'Beth Evans' |
| Corydalis Solida 'George Baker' |
| Corydalis Solida 'Purple Bird' |
| Corylus Avellana 'Aurea' |
| Corylus Maxima 'Purpurea' |
| Cotinus Coggygria |
| Cotinus Coggygria 'Grace' |
| Cotinus Coggygria 'Royal Purple' |
| Cotoneaster Dammeri |
| Cotoneaster Horizontalis |
| Crataegus Prunifolia |
| Crinodendron Hookerianum |
| Crocosmia 'Amberglow' |
| Crocosmia 'Baby Barnaby' |
| Crocosmia 'Columbus' |
| Crocosmia 'Culzean Pink' |
| Crocosmia 'Debutante' |
| Crocosmia 'Golden Dew' |
| Crocosmia 'Goldie' |
| Crocosmia 'James Coey' |
| Crocosmia 'Krakatoa' |
| Crocosmia 'Limpopo' |
| Crocosmia 'Lucifer' |
| Crocosmia 'Ministar' |
| Crocosmia 'Mistral' |
| Crocosmia 'Orange River' |
| Crocosmia 'Prince Of Orange' |
| Crocosmia 'Red David' |
| Crocosmia 'Red King' |
| Crocosmia 'Spitfire' |
| Crocosmia 'Tangerine Queen' |
| Crocosmia Bronze Leaved Apricot |
| Crocosmia Crocosmiiflora 'Babylon' |
| Crocosmia Crocosmiiflora 'Buttercup' |
| Crocosmia Crocosmiiflora 'Castle Ward Late' |
| Crocosmia Crocosmiiflora 'Citronella' |
| Crocosmia Crocosmiiflora 'George Davidson' |
| Crocosmia Crocosmiiflora 'Gerbe D'or' |
| Crocosmia Crocosmiiflora 'Mephistopheles' |
| Crocosmia Crocosmiiflora 'Meteore' |
| Crocosmia Crocosmiiflora 'Pauls Best Yellow' |
| Crocosmia Crocosmiiflora 'Solfaterre' |
| Crocosmia Crocosmiiflora 'Star Of The East' |
| Crocosmia Crocosmiiflora 'Sultan' |
| Crocosmia Crocosmiiflora 'Zambesi' |
| Crocosmia Crocosmiiflora 'Zeal Tan' |
| Crocosmia Masoniorum 'Rowallane' |
| Cryptomeria Japonica 'Barabits Gold' |
| Cryptomeria Japonica 'Elegans Aurea' |
| Cryptomeria Japonica 'Elegans' |
| Cryptomeria Japonica 'Haggo' |
| Cryptomeria Japonica 'Rasen-sugi' |
| Cryptomeria Japonica 'Sekkan-sugi' |
| Cryptomeria Japonica 'Vilmoriniana' |
| Curriana Dryopteris 'Plumosum' |
| Cyclamen Hederifolium 'Album' |
| Cyclamen Hederifolium Agm |
| Cyclamen Hederifolium Silver Leaf - Mixed Colours |
| Cymbalaria Pallida 'Alba' |
| Cynara Cardunculus |
| Cyperus Fuscus |
| Cytisus 'Lena' |
| Cytisus Batandieri |
| Cytisus Praecox |
| Cytisus Praecox 'Albus' |
| Cytisus Praecox 'Allgold' |
