Silver Mountain Gum
Silver Sage
Silver Wormwood
Sky Flower
Skyrocket Juniper
Slender Deutzia
Smooth-edged Agave
Snapdragon
Snow Ball Viburnum
Snow White Flowering Tea Tree
Snow-In-Summer
Snowdrift Crabapple
Soaptree Yucca
Society Garlic
Sonoma Sage, Creeping Sage
South African Jasmine
Southern Live Oak
Southern Magnolia, Bull Bay
Southern Pink Flowering Currant
Southern Sword Fern