Silver Lace Society Garlic
Silver Leaf Marguerite
Silver Mound Artemisia
Silver Mountain Gum
Silver Sage
Silver Wormwood
Sky Flower
Sky Flower. Golden Dew-Drop
Skyrocket Juniper
Slender Deutzia
Slipper Flower, Pouch Flower
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