'Silver Anouk' French Lavender Silver Carpet (spp.)
Silver Feather (spp.) Silver Feather 'Adagio'
Silver Feather 'Autumn Light' Silver Feather 'Cabaret'
Silver Feather 'Cosmopolitan' Silver Feather 'Gracillimus'
Silver Feather 'Little Dot' Silver Feather 'Morning Light'
Silver Feather 'Nippon' Silver Feather 'Purpurascens'
Silver Feather 'Sarabande' Silver Feather 'Strictus'
Silver Feather Variegated Silver Feather 'Yaku Jima'
Silver Groundsel (spp.) Silver Groundsel 'Cirrus'
Silver Groundsel 'New Look' Silver Groundsel 'Silver Lace'
Silver Groundsel 'Silverdust' Silver Groundsel 'Snowstorm'
'Silver Lace' Dusty Miller: cineraria 'Silver Lace' Society Garlic
'Silver Mound' Lantana 'Silver Mound' Mugwort: schmidtiana
'Silver Posie' Garden Thyme 'Silver Star' Everlasting
Silverberry (spp.) 'Silverdust' Dusty Miller: cineraria
Silverleaf (spp.) Silverleaf 'Compactum'
Silvermound (spp.) Silvermound 'Silver Mound'
Silverthorn (spp.) Singleleaf Pinyon
'Siskiyou Blue' Idaho Fescue 'Sister Agnes' Oleander
'Six Hills Giant' Catmint 'Skandia' Savin Juniper
Skunkbush 'Skylark' Blueblossom
'Skyline' Thornless Honey Locust 'Skyrocket' Colorado Red Cedar
Slender Myoporum Small-leaved Lime 'Chancellor'
Small-leaved Lime 'Crimean' Small-leaved Lime 'Glenleven'
Small-leaved Lime 'Greenspire' Small-leaved Lime 'June Bride'
Small-leaved Lime 'Olympic' Small-leaved Lime 'Rancho'
Small-leaved Lime 'Truesi' Small-seeded Beargrass
Smoke Bush (spp.) Smoke Tree (spp.)
Snail Bean Snail Vine
Snapdragon, Island Bush Sneezeweed (spp.)
Sneezeweed, Common (spp.) 'Snow Flake' New Zealand Tea Tree
Snow in Summer (spp.) 'Snowflake' Catmint
'Snowsport' Common Yarrow 'Snowstorm' Dusty Miller: cineraria
Soap Aloe Soap Tree Yucca
Soapweed Yucca Society Garlic 'Silver Lace'
Society Garlic Variegated Soledad Pine
Sonoma Manzanita (spp.) Sonoma Manzanita 'Howard McMinn'
'Sonora' Black-eyed Susan Sotol, Common
Sotol, Narrow-Leaf Spanish Bayonet 'Marginata'
Spanish Bayonet Variegated Spanish Dagger 'Marginata'
Spanish Dagger Variegated Spanish Dagger Variegated
Spanish Lavender (spp.) Spanish Lavender 'Silver Anouk'
Spear Grass: tenuissima Spicebush, Western
Spider Flower 'Aromas' Spider Flower 'Austraflora Fanfare'
Spider Flower 'Caloundra Gem' Spider Flower 'Canberra Gem'
Spider Flower 'Mason's Hybrid' Spider Flower 'Noellii'
Spider Flower 'Oleoides x Shiressii' Spider Flower 'Pink Lady'
Spider Flower 'Pink Pearl' Spider Flower 'Poorinda Golden Lyre'
Spider Flower 'Red Hooks' Spider Flower 'Ruby Clusters'