Silver Carpet Lessingia
Silver Dollar Tree
Silver Jade Plant
Silver Mound Artemisia
Silver Wormwood
Silverberry; Maculata Thorny Elaeag
Sineless Caper Bush
Slender Deutzia
Small Cape Rush
Smooth Agave
Snapdragon
Snow Cap Sedge
Snow White Manuka Tea Tree
Snow-In-Summer
Soap Aloe, African Aloe
Soaptree Yucca
Society Garlic
Sonoma Sage, Creeping Sage