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
Spanish Lavender
Sparaxis, Harlequin Flower