Carpathian Bellflower (spp.) Carpathian Bellflower 'Bavaria Blue'
Carpathian Bellflower 'Blue Clips' Carpathian Bellflower 'Blue Moonlight'
Carpathian Bellflower 'Blue Uniform' Carpathian Bellflower 'Deep Blue Clips'
Carpathian Bellflower 'Pearl Deep Blue' Carpathian Bellflower 'White Uniform'
Carpathian Harebell (spp.) Carpathian Harebell 'Bavaria Blue'
Carpathian Harebell 'Blue Clips' Carpathian Harebell 'Blue Moonlight'
Carpathian Harebell 'Blue Uniform' Carpathian Harebell 'Deep Blue Clips'
Carpathian Harebell 'Pearl Deep Blue' Carpathian Harebell 'White Uniform'
'Carpet Bright Red' Garden Petunia Carpet Bugle (spp.)
Carpet Bugle 'Atropurpurea' Carpet Bugle 'Bronze Beauty'
Carpet Bugle 'Burgundy Glow' Carpet Bugle 'Catlin's Giant'
Carpet Bugle 'Crispa' Carpet Bugle 'Jungle Beauty'
Carpet Bugle 'Metallica' Carpet Bugle 'Purpurea'
Carpet Bugle 'Renick' Carpet Bugle 'Rosea'
Carpet Bugle 'Silver Beauty' Carpet Bugle White
Carpet Bugleweed (spp.) Carpet Bugleweed 'Atropurpurea'
Carpet Bugleweed 'Bronze Beauty' Carpet Bugleweed 'Burgundy Glow'
Carpet Bugleweed 'Catlin's Giant' Carpet Bugleweed 'Crispa'
Carpet Bugleweed 'Jungle Beauty' Carpet Bugleweed 'Metallica'
Carpet Bugleweed 'Purpurea' Carpet Bugleweed 'Renick'
Carpet Bugleweed 'Rosea' Carpet Bugleweed 'Silver Beauty'
Carpet Bugleweed White Carpet Geranium
'Carpet White' English Daisy Carpetweed (spp.)
Carpetweed 'Atropurpurea' Carpetweed 'Bronze Beauty'
Carpetweed 'Burgundy Glow' Carpetweed 'Catlin's Giant'
Carpetweed 'Crispa' Carpetweed 'Jungle Beauty'
Carpetweed 'Metallica' Carpetweed 'Purpurea'
Carpetweed 'Renick' Carpetweed 'Rosea'
Carpetweed 'Silver Beauty' Carpetweed White
Carpetweed: verticillata Carribean Spider Lily
Carrion Flower Carrizo Variegated
Carrot Carrot Weed
Carrot, Moon Carrot, Wild
Cart Track Plant (spp.) Cart Track Plant 'Atropurpurea'
Cart Track Plant 'Rubrifolia' Cascade Speedwell
'Cascadia Chateau' Garden Petunia Case Knife Bean
Cashmere Sage Caspian Lotus
Cassia: fasciculata Cast Iron Plant
'Castle Orange' Plume Celosia Castor Bean (spp.)
Castor Bean 'Carmencita' Castor Bean 'Impala'
Castor Bean 'Zanzibariensis' Castor Oil Plant (spp.)
Castor Oil Plant 'Carmencita' Castor Oil Plant 'Impala'
Castor Oil Plant 'Zanzibariensis' Catchfly
Catchfly 'Electra' Catchfly, Arkwright's 'Orange Gnome'
Catchfly, Arkwright's 'Vesuvius' Catchfly: latifolia
Catchfly: polypetala Catepillar Cactus
Catesbey's Pitcher Plant Cathedral Window
'Cathedral Windows' Alumroot: Heuchera 'Catherine Marie' Waterlily
'Catherine Neal' Daylily 'Catherine Woodbury' Daylily
'Cathy Stroupe' Waterlily 'Catlin's Giant' Carpet Bugle