Common Heliotrope
Common Sunflower
Common Thyme
Compact Gold Coin
Compact Heavenly Bamboo
Compact Karo
Compact Myrtle
Compact Yellow Phlomis
Concha California Lilac
Conejo or Saffron Buckwheat
Copper Canyon Dasiy, Perennial Mari
Copper King Gazania
Coral Beauty Bearded Iris
Coral Bells, Spangles
Coral Fountain, Firecracker Plant
Coral Gum
Cork Oak
Cornflower, Bachelor's Button
Cosmos
Couesii Century Plant