Cape Honeysuckle
Cape Mallow
Cape or Monarch Daisy
Cape Plumbago
Cape Rush
Capital Columnar Callery Pear
Carmel Creeper
Carmel Sur Manzanita
Carnation, Clove Pink, Pinks
Carnival Trailing Lantana
Carob Tree
Carolina Jessamine
Carolina Laurel Cherry
Carriere or Lavalle Hawthorn
Carrotwood, Cupania
Cat's Claw, Yellow Trumpet Vine
Catalina Cherry
Cathedral Windows Coral Bells
Catmint
Cecile Brunner Rose (polyantha)