Strand Wheat 'Manhattan' 'Strata' Mealycup Sage
Straw Foxglove Strawberries and Cream Grass
Strawberry Begonia (spp.) Strawberry Begonia 'Harvest Moon'
'Strawberry Candy' Alumroot: Heuchera 'Strawberry Candy' Daylily
'Strawberry Fields Forever' Daylily Strawberry Firetails
Strawberry Foxglove Strawberry Foxtails
Strawberry Geranium (spp.) Strawberry Geranium 'Harvest Moon'
'Strawberry' Geranium: Pelargonium Strawberry Pear
'Strawberry Swirl' Alumroot: Heuchera Strawberry 'Red Ruby'
Strawberry Variegated Strawberry, Beach (spp.)
Strawberry, European Wild (spp.) Strawberry, European Wild 'Improved Rugen'
Strawberry, Sand (spp.) Strawberry, Wild (spp.)
Strawberry, Wild 'Improved Rugen' Strawberry: frel 'Lipstick'
Strawberry: ovalis, Beach Strawflower: montanum
'Streaker' Daylily 'Striata' Lily of the Valley
'Stricta' Feather Reed Grass 'Strictus' Maiden Grass
'Strike it Rich' Tall Bearded German Iris String Lily
String of Hearts Stringy Stonecrop
Striped Loosestrife 'Striptease' Hosta
Succory (spp.) Succory 'Marina'
Succulent Bush Senecio 'Sue Rothbauer' Daylily
'Sugar and Cream' Hosta: Hosta Sugar Cane, Purple
Sugar Scoop 'Adagio' Sugar Scoop 'Black Velvet'
Sugar Scoop 'Crow Feather' Sugar Scoop 'Cygnet'
Sugar Scoop 'Freckles' Sugar Scoop 'Heronswood Mist'
Sugar Scoop 'Iron Butterfly' Sugar Scoop 'Lacquer Leaf'
Sugar Scoop 'Lavid of Skye' Sugar Scoop 'Mint Chocolate'
Sugar Scoop 'Pink Brushes' Sugar Scoop 'Pink Pearls'
Sugar Scoop 'Pinwheel' Sugar Scoop 'Skeleton Key'
Sugar Scoop 'Spring Symphony' Sugar Scoop 'Tiger Stripe'
Sugarbush, Common Sugarbush, Common 'Clarks Red'
Sugarcane 'Sulfur' Sweet Potato Vine
Sulphur Buckwheat (spp.) Sulphur Buckwheat 'Arizona Sun'
Sulphur Buckwheat: umbellatum Sulphur Flower
Sulphur Flower Buckwheat 'Sulphurea' Basket of Gold
'Sulphurea Grandiflora' Fragrant Waterlily 'Sulphureum' Epimedium
Sultana (spp.) Sultana 'Blackberry Ice'
Sultana 'Blitz 2000 Red' Sultana 'CandyŽ Coral Bee'
Sultana 'CandyŽ Deep Salmon' Sultana 'CandyŽ Mix'
Sultana 'CandyŽ Rose Star' Sultana 'Rose Parade'
Sultana 'Rosette' Sultana 'Show Stopper'
Sultana 'Stardust Salmon' Sultana 'Super Elfin Orange'
Sultana 'Super Elfin Swirl' Sultana 'Victorian Rose'
'Sultan's Ruby' Siberian Iris 'Sum & Substance' Hosta
'Sumatrana' Banana