Santa Barbara Lilac
Santa Cruz Firethorn
Santa Cruz Island Buckwheat
Santa Cruz Pyracantha
Saratoga Sweet Bay
Scarlet Monkey Flower
Scarlet Trumpet Vine
Scarlet-Bugler
Sea Dahlia
Sea Lavender, Statice
Sea Pink, Common Thrift
Seaside Daisy, Beach Fleabane
Semi-Trailing Yellow Gazania
Semi-trailing Yellow Gazania
Sentinel Manzanita
Shademaster Honey Locust
Shamel Ash, Orange County
Shaw's Century Plant
Shiny Xylosma
Shoestring Acacia