Silver Maple, Soft or White Maple
Silver Mound Artemisia
Silver or Large Wormwood
Silver Sage
Silvery Germander
Silvery Sunproof Lilyturf
Siskiyou Mexican Evening Primrose
Skyrocket Columnar Juniper
Slender deutzia
Small Cape Rush
Small Jeruselum Sage
Smooth-Edged or Weber Agave
Snake Plant Sansevieria, Mother-in-
Snapdragon
Snow White Spreading Manuka
Snow-In-Summer
Snowdrift Crabapple
Soaptree Yucca
Society Garlic
Soquel Coast Redwood