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 'Skylark' Blueblossom
'Skylark' Holly Grape 'Skylark' Oregon Grape
Slender Deutzia (spp.) Slender Deutzia 'Chardonnay Pearls®'
Slender Deutzia 'Crème Fraiche®' Slender Myoporum
Slender Velvet Bush Slipper Flower: integrifolia
Slipperwort: integrifolia Sloe
Small Crowea Small leaf Mahogany
Small Leaf Viburnum Small-leaved Rose
Small-leaved Tea Tree Small-seeded Beargrass
Smoke Bush (spp.) Smoke Bush 'Flame'
Smoke Bush 'Purple Robe' Smoke Bush 'Purpureus'
Smoke Bush 'Royal Purple' Smoke Bush 'Velvet Cloak'
Smoke Bush 'Young Lady' Smoke Tree (spp.)
Smoke Tree 'Flame' Smoke Tree 'Purple Robe'
Smoke Tree 'Purpureus' Smoke Tree 'Royal Purple'
Smoke Tree 'Velvet Cloak' Smoke Tree 'Young Lady'
Smoke Tree, Grace Hybrid 'Grace' Smoke Tree: obovatus X C. coggygria
'Smoky Mountian' Chinese Hibiscus Smooth Azalea
Smooth Blackhaw Smooth Bumelia
Smooth Hydrangea (spp.) Smooth Hydrangea: arborescens (spp.)
Smooth Hydrangea: arborescens 'Annabelle' Smooth Hydrangea: arborescens 'Grandiflora'
Smooth Hydrangea: arborescens 'Incrediball®' Smooth Hydrangea: arborescens 'Invincibelle® Spirit'
Smooth Hydrangea: arborescens 'White Dome®' Smooth Serviceberry 'Cumulus'
Smooth Sumac Smooth Witherod (spp.)
Smooth Witherod 'Brandywine™' Smooth Witherod 'Winterthur'
Smooth-bark Apple 'SMVCB (Spice Baby™)' Koreanspice Viburnum
Snailseed Snake Plant 'Patula'
Snake Plant 'Pulchra' Snake Plant 'Golden Hahnii'
Snake Plant 'Silver Queen' Snake Plant: fischeri
Snake Vine Snakeroot 'Rhodotera'
Snakeweed 'Prostrate Blue' Snakeweed, Blue
Snakeweed, Common Snakeweed, Red Variegated
Snapdragon, Island Bush 'Snow' Azalea
Snow Azalea (spp.) 'Snow Baby' Crapemyrtle
Snow Bush, Hawaiian 'Roseopicta' 'Snow Day® Blizzard' Pearl Bush
'Snow Day® Surprise' Pearl Bush 'Snow Drift' Rose of Sharon
'Snow Dwarf' Japanese Skimmia 'Snow Fairy' Bluebeard
'Snow Flake' New Zealand Tea Tree 'Snow' Kurume Azalea
Snow on the Mountain 'Roseopicta' 'Snow Queen' Chinese Hibiscus
'Snow Queen' Oakleaf Hydrangea 'Snow' Sawara Cypress
'Snow Storm™' European Spirea 'Snow Velvet' Mock Orange
'Snowball' Monterey Ceanothus Snowball, Wild
Snowbell, American Snowberry 'Mother of Pearl'
Snowberry 'Amethyst™' Snowberry 'Magic Berry'
Snowberry, West Indian Snowberry: microphyllus
'Snowbird' Shrubby Cinquefoil 'Snowflake' Oakleaf Hydrangea
'Snowhill' Hybrid Hydrangea: hybrid Snowhill Hydrangea (spp.)
Snowhill Hydrangea 'Annabelle' Snowhill Hydrangea 'Grandiflora'
Snowhill Hydrangea 'Incrediball®' Snowhill Hydrangea 'Invincibelle® Spirit'
Snowhill Hydrangea 'White Dome®' 'Snowmound' Nippon Spirea
Snowy River Wattle