Common Trumpet Creeper
Common Yarrow
Common Yarrow, Milfoil
Common Zinnia
Compact Karo
Compact Myrtle
Concha California Lilac
Conejo Buckwheat
Contorted White Pine
Copper King Gazania
Coral Bark Maple
Coral Beauty Bearded Iris
Coral Bells
Coral Fountain, Firecracker Plant
Cork Oak
Cornflower, Bachelor's Button
Cosmos
Couesii Century Plant
Coulter Pine, Bigcone Pine