Crested Gentian Crested Leopard Plant
'Crimson Beauty' Japanese Knotweed 'Crimson Beauty' Moss Phlox
Crimson Bells (spp.) Crimson Bells 'Alida's Pesto'
Crimson Bells 'June Bride' Crimson Bells 'Silver Veil'
Crimson Bells 'Sioux Falls' Crimson Bells 'Splendens'
Crimson Bells 'Stormy Seas' Crimson Bells 'Windfield Pink'
Crimson Bramble Crimson Columbine
Crimson Cup Bromeliad 'Crimson Curls' Alumroot: Heuchera
Crimson Flag (spp.) Crimson Flag 'Jacqueline'
'Crimson Glory' Daylily 'Crimson Pirate' Daylily
'Crimson Rambler' Morning Glory: tricolor 'Crimson Star' Columbine
Crinum Lily (spp.) Crinum Lily 'Ellen Bosanquet'
'Crispa' Boston Fern 'Crispa' Carpet Bugle
'Crispa' Golden Shield Fern 'Crispa' Male Fern
'Crispata' Leopard Plant 'Crispula' Hosta
'Crispum' Common Tansy Crocosmia (spp.)
Crocosmia 'Emily McKenzie' Crocosmia 'George Davidson'
Crocosmia 'Lucifer' Crocosmia 'Norwich Canary'
Crocosmia 'Wallerton Red' Crocus, Asian
Crocus, Autumn (spp.) Crocus, Autumn 'Waterlily'
Crocus, Dutch 'Jeanne d'Arc' Crocus, Fall
Crocus, Golden 'Advance' Crocus, Spring
Crocus, Tommasini's (spp.) Crocus, Woodland (spp.)
Crocus: hybridushybrid, Dutch Crocus: pulchellus, Fall
Crocus: speciosum, Autumn (spp.) Crocus: speciosum, Autumn 'The Giant'
Crocus: speciosus, Fall Crossandra
'Crow Feather' Foamflower: Tiarella Crowfoot (spp.)
Crowfoot Violet (spp.) Crowfoot 'Espresso'
Crowfoot 'White Angel' Crowfoot, European (spp.)
Crowfoot, European 'Black Barlow' Crowfoot, European 'Grandmother's Garden'
Crowfoot, European 'Tower Light Pink' Crowfoot, European 'Winky Blue-White'
Crowfoot, European 'Winky Purple-White' Crowfoot, European 'Winky Red-White'
Crowfoot, European 'Winky Rose-Rose' Crowfoot, Small 'Brazen Hussy'
Crowfoot, Water Crown Anemone (spp.)
Crown Anemone 'Mr. Fokker' Crown Anemone 'The Bride'
Crown Cactus 'Crown Golden' Pansy
Crown Imperial Fritillary (spp.) Crown Imperial Fritillary 'Lutea'
'Crown Jewel' Alumroot: Heuchera 'Crown Jewel' Hosta
Crown of Thorns Crown of Thorns: milii imperiate
Crown of Thorns: milii lutea Crown of Thorns: milii splendens breonii
'Crowned Imperial' Hosta Crown-of-Thorns
'Crushed Ice' Grassy Arrowhead Cryptotaenia 'Atropurpurea'
'Crystal Blue' Tall Bearded German Iris 'Crystal Confetti' Lawn Marsh Pennywort
Cuban Lily Cuban Oregano (spp.)
Cucumber, Exploding Cucumber, Squirting
Cudweed 'Fairy Gold' Cudweed (spp.)
Culver's Root (spp.) Culver's Root White
Culver's Root, Siberian 'Cunningham' Moss Phlox
Cup and Saucer Vine (spp.) Cup Fern: punctilobula
Cup Flower, White Cup Plant