'Simplicity' Rose Simpson's Stopper
'Singin in the Rain' Rose Single Leaf Pinyon
Single Leaf Pinyon Pine Singleleaf Pinyon
'Sizzler Burgundy' Scarlet Sage: splendens 'Sizzler Salmon' Scarlet Sage: splendens
'Skinneri' Silver Maple 'Skogholm' Bearberry Cotoneaster
Skunk Tree Skunkbush
'Skybound' Sugar Maple 'Skylark' Holly Grape
'Skylark' Oregon Grape 'Skyrocket' Alumroot: Heuchera
Slash Pine Slash Pine: elliottii
'Sleigh Bells' American Holly 'Slender Silhouette' Sweetgum
'Slim Jane' American Holly Small Leaf Viburnum
Small Woodland Sunflower Small-Flowered Century Plant
Small-leaved Rubber Plant (spp.) 'Smokey Rose' Alumroot: Heuchera
Smooth Blackhaw Smooth Serviceberry (spp.)
Smooth Serviceberry 'Lancifolia' Smooth Sumac
Smooth Witherod (spp.) Smooth Witherod 'Brandywine™'
Smooth Witherod 'Winterthur' 'SMVCB (Spice Baby™)' Koreanspice Viburnum
Snakebark Maple Snakebark Maple: davidii grosseri
Snakewood, Bitter Snapdragon, Climbing 'Jewels'
Snapdragon, Creeping 'Jewels' Snapdragon, Summer 'AngelMist™ Purple Stripe'
Snapdragon, Trailing 'Jewels' Snapdragon, Twining 'Jewels'
'Snow Queen' Chinese Hibiscus Snowberry 'Amethyst™'
Snowberry, West Indian 'Snowdrift' Flowering Crabapple
Snowdrop Tree Soft Maple (spp.)
Soft Maple 'Beebe' Soft Maple 'Pyramidale'
Soft Maple 'Silver Queen' Soft Maple 'Skinneri'
Soft Maple 'Wieri' 'Softly Softly' Rose
Soldierwood 'Song Sparrow' Daylily
'Sonia' Rose 'Sonic Bloom® Pearl' Old Fashioned Weigela
'Sonic Bloom® Pink' Old Fashioned Weigela 'Sonic Bloom™ Red' Old Fashioned Weigela
Sonoma Manzanita (spp.) Sonoma Manzanita 'Howard McMinn'
Sonoran Palmetto 'Soquel' Coast Redwood
'Soraya' Common Sunflower Sour Gum (spp.)
South Florida Slash Pine Southern Arrowwood (spp.)
Southern Arrowwood 'Blue Muffin®' Southern Bayberry
Southern Blackhaw (spp.) Southern Blackhaw 'Emerald Charm™'
Southern Bush Honeysuckle 'Butterfly' 'Southern Comfort' Alumroot: Heuchera
Southern Crabapple Southern Fox Grape
Southern Hawthorn 'Winter King' Southern Ironwood
Southern Magnolia (spp.) Southern Magnolia 'Alta®'
Southern Magnolia 'Altius™' Southern Magnolia 'Baby Doll'
Southern Magnolia 'Bracken's Brown Beauty' Southern Magnolia 'Claudia Wannamaker'
Southern Magnolia 'D.D. Blanchard' Southern Magnolia 'Dearing Street'
Southern Magnolia 'Edith Bogue' Southern Magnolia 'Exmouth'
Southern Magnolia 'Exonensis' Southern Magnolia 'Hasse'
Southern Magnolia 'Little Gem' Southern Magnolia 'Miss Chloe®'
Southern Magnolia 'Phyllis Barrow' Southern Magnolia 'Plantation'
Southern Magnolia 'Russet' Southern Magnolia 'Saint Mary'
Southern Magnolia 'Samuel Sommer' Southern Magnolia 'Satinleaf'
Southern Magnolia 'Select III' Southern Magnolia 'Symmes'
Southern Magnolia 'Victoria' Southern Magnolia: grandiflora liliiflorahybrid
Southern Pine Southern Prickly Ash
Southern Red Oak Southern White Cedar (spp.)
Southern White Cedar 'Andelyensis' Southern White Cedar 'Ericoides'
Southern White Cedar 'Heatherbun' Southern Woodland Penstemon
Southern Yew (spp.) Southern Yew 'Maki'
Southwestern White Pine