'Corinne Tremaine' Montana Speedwell Corkscrew
Corkscrew Flower Corn Leaf Iris
Corn Lily Corn Mint
Corn 'Bars & Stripes' Corn 'King Arthur'
Corn 'Tiger Cub' Corn Variegated
Corn, Sweet 'Bars & Stripes' Corn, Sweet 'King Arthur'
Corn, Sweet 'Tiger Cub' Corn, Sweet Variegated
Corn, Turkey (spp.) Corn, Turkey 'Snowdrift'
Cornel, Dwarf 'Cornflower Blue' Florist's Cineraria
Cornflower, Perennial (spp.) Cornflower, Perennial 'Blue'
Cornflower, Perennial 'Gold Bullion' Cornflower, Perennial Golden
Cornflower, Perennial White Cornflower, Persian (spp.)
Cornflower, Persian 'Rose' 'Cornubiense' Common Polypod Fern
Corpse Plant 'Corsica' Sea Pink
'Corsica' Thrift Corsican Hellebore
Corsican Mint Corsican Stonecrop (spp.)
Corydalis, Blue 'China Blue' Corydalis, Dwarf Blue 'Rhythm 'n' Blues'
Corydalis, Yellow (spp.) Corydalis, Yellow White
Corydalis: ochroleuca 'Cosmopolitan' Maiden Grass
Cosmos, Chocolate Costa Rica Nightshade
Costus, Fiery Cottage Pink (spp.)
Cottage Pink 'Ideal Violet' Cottage Pink 'Vanilla'
'Cotton Candy' Astilbe 'Cotton Candy' Moss Phlox
'Cotton Cool' Lungwort: hybrid Cotton Lavender (spp.)
Cotton Lavender Dwarf Cotton Lavender 'Lavender Cotton'
Cotton Lavender 'Lemon Queen' 'Cotton Tail' Sea Thrift
Cotton, Wild (spp.) Cotton, Wild 'Disco'
Cotton, Wild 'Luna Red' Cotton, Wild 'Southern Belle'
Cotyledon Couch 'Austrailia'
Couch 'Santa Ana' Country Borage (spp.)
'Court Troubador' Daylily Cow Horn
Cow Horn Agave Cow Parsley 'RavensWing'
Cowboy Primrose 'Cowichan' Primrose: hybrid
Cowslip Cowslip Lungwort (spp.)
Cowslip, Common (spp.) Cowslip, Giant (spp.)
Cowslip, Giant 'Ceperly Hybrid' Cowslip, Jerusalem 'Sissinghurst White'
Cowslip, Meadow (spp.) Cowslip, Tibetan (spp.)
Cowslip, Tibetan 'Ceperly Hybrid' Crab Cactus
'Cracker Jack' Moss Phlox Cradle Orchid
'Cragmoor Sweetheart' Daylily Cranberry Cactus
Crane Flower Cranesbill (spp.)
Cranesbill 'Biokovo' Cranesbill 'Biokovo Karmina'
Cranesbill, Bloodred (spp.) Cranesbill, Bloodred 'Alpenglow'
Cranesbill, Bloodred 'New Hampshire Purple' Cranesbill, Bloodred 'Shepherd's Warning'
Cranesbill, Bloodred 'Vision® Pink' Cranesbill, Bloodred White
Cranesbill, Bloody (spp.) Cranesbill, Bloody 'Alpenglow'
Cranesbill, Bloody 'New Hampshire Purple' Cranesbill, Bloody 'Shepherd's Warning'
Cranesbill, Bloody 'Vision® Pink' Cranesbill, Bloody White
Cranesbill, Dalmatian Cranesbill, Lilac 'Gravetye'
Cranesbill, Meadow (spp.) Cranesbill, Meadow 'Midnight Reiter'
Cranesbill, Meadow 'Mrs. Kendall Clark' Cranesbill, Meadow 'Plenum-Caeruleum'
Cranesbill, Meadow 'Plenum-Violaceum' Cranesbill, Meadow 'Summer Skies'
Cranesbill, Mourning Widow 'Lily Lovell' Cranesbill, Mourning Widow 'Purpureum'
Cranesbill, Mourning Widow 'Samobor' Cranesbill, Purple
Cranesbill, Pyrenean 'Wargrave Pink' Cranesbill, Renard's
Cranesbill: canariense Cranesbill: cinereum, Grayleaf 'Ballerina'
Cranesbill: clarkei 'Kashmir Purple' Cranesbill: Geranium 'Anne Thomson'
Cranesbill: Geranium 'Black Magic Rose' Cranesbill: Geranium 'Blue Sunrise'
Cranesbill: Geranium 'Brookside' Cranesbill: Geranium 'Frances Grate'
Cranesbill: Geranium 'Harveyi' Cranesbill: Geranium 'Jason Bloom'
Cranesbill: Geranium 'Johnson's Blue' Cranesbill: Geranium 'Kahlua'
Cranesbill: Geranium 'Kurt's Variegated' Cranesbill: Geranium 'Orkneys Pink'
Cranesbill: Geranium 'Patricia' Cranesbill: Geranium 'Philippe Vapelle'
Cranesbill: Geranium 'Pink Spires' Cranesbill: Geranium 'Rozanne'
Cranesbill: Geranium 'Silver Sugar Plum' Cranesbill: Geranium 'Terra Franche'
Cranesbill: Geranium 'Varigated Mint Rose' Cranesbill: Geranium 'Victor Reiter Strain'
Cranesbill: incanum Cranesbill: macrorrhizum (spp.)
Cranesbill: macrorrhizum 'Ingwersen's Variety' Cranesbill: macrorrhizum 'Walter Inquersen'
Cranesbill: maculatum (spp.) Cranesbill: maculatum 'Espresso'
Cranesbill: maculatum 'White Angel' Cranesbill: maderense
Cranesbill: magnificumhybrid Cranesbill: psilostemon (spp.)
Cranesbill: psilostemon 'Bressingham Flair' Cranesbill: wlassovianum