Simpleleaf Vitex (spp.) Simpleleaf Vitex Variegated
'Simplicity' Rose Simpson's Stopper
Sinaloan Silk Tree Singapore Holly
'Singin in the Rain' Rose Single Leaf Pinyon
Single Leaf Pinyon Pine Singleleaf Pinyon
Singleseed Juniper (spp.) Singleseed Juniper 'Blue Carpet'
Singleseed Juniper 'Blue Star' 'Siouxland' Carolina Poplar
'Sir Charles Lemon' Rhododendron: hybrid 'Sir Joseph Banks' Bigleaf Hydrangea
Siris Tree Siskiyou Cypress
'Sister Agnes' Oleander 'Sister Therese' Bigleaf Hydrangea
Sitka Mountain Ash Sitka Spruce
'Sizzling Pink' Chinese Fringe Bush: chinense 'Skagit' Oriental Spruce
'Skandia' Savin Juniper 'Skeeter's Broom' Japanese Maple
Skimmia 'Kew Green' Skimmia, Japanese (spp.)
Skimmia, Japanese 'Cecelia Brown' Skimmia, Japanese 'Rubella'
Skimmia, Japanese 'Snow Dwarf' 'Skinneri' Silver Maple
'Skogholm' Bearberry Cotoneaster Skunk Tree
Skunkbush Sky Flower 'Golden Edge'
Sky Flower 'Sapphire Showers' Sky Flower Variegated
Sky Flower: auriculata (spp.) Sky Flower: auriculata 'Imperial Blue'
Sky Flower: auriculata 'Royal Cape' Sky Flower: auriculata White
'Sky Pencil' Japanese Holly 'Sky Pointer®' Japanese Holly
'Skybound' Sugar Maple 'Skylands' Oriental Spruce
'Skylark' Blueblossom 'Skylark' Holly Grape
'Skylark' Oregon Grape 'Skyline' Thornless Honey Locust
'Skyrocket' Colorado Red Cedar Slash Pine
Slash Pine: elliottii 'Sleigh Bells' American Holly
Slender Deutzia (spp.) Slender Deutzia 'Chardonnay Pearls®'
Slender Deutzia 'Crème Fraiche®' Slender Deutzia 'Nikko'
Slender Myoporum 'Slender Silhouette' Sweetgum
Slender Velvet Bush 'Slim Jane' American Holly
Slipper Flower: integrifolia Slipperwort: integrifolia
Sloe Small Crowea
Small Leaf Confederate Jasmine (spp.) Small Leaf Confederate Jasmine Variegated
Small Leaf Kunzea 'Dwarf' Small leaf Mahogany
Small Leaf Viburnum Small-fruited Gray Gum
Small-leaved Lillypilly Small-leaved Lime (spp.)
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-leaved Moreton Bay Fig Small-leaved Rose
Small-leaved Rubber Plant (spp.) Small-leaved Rubber Plant 'Indigo'
Small-leaved Rubber Plant 'Jacqueline' Small-leaved Rubber Plant 'Monique'
Small-leaved Rubber Plant 'Spire' Small-leaved Rubber Plant Variegated
Small-leaved Tea Tree Small-seeded Beargrass