Sandankwa viburnum
Sansevieria
Santa Barbara Daisy
Santa Cruz Firethorn
Santa Cruz Island Buckwheat
Saratoga Sweet Bay
Sargent Crab Apple
Saucer Magnolia
Sawleaf Zelkova
Scandia Juniper
Scarlet Monkeyflower
Scarlet Pimpernel
Scarlet Trumpet Vine
Scot's Pine
Scottish Heather
Sea Lavender
Semi-trailing Yellow Gazania
Sentinel Manzanita
Shademaster Locust