• (1) S Bonnet Granny - Sacred Tobacco
• (2) Sacred Virola - Sainfoin Cultivé (Algeria)
• (3) Sainfoin D´espagne - Salome Cranesbill
• (4) Salomes Dance Daylily - Samtpappel
• (5) Samual Blue Hosta - Sand Dollar Cactus
• (6) Sand Dropseed - Sandyfield Dewberry
• (7) Sandyfield Hairsedge - Saotome Rhododendron
• (8) Saouari - Sasanqua Camellia
• (9) Sasanqua Camellia - Savannah Primrose-Willow
• (10) Savannah Queen Daylily - Scaly Zamia
• (11) Scaly-Bark Beefwood - Scented Matgrass
• (12) Scented Mayweed - Schwarzföhre
• (13) Schwarzfichte - Scribner´s Wheatgrass
• (14) Scribner's Grass - Sea-Island Cotton
• (15) Sea-Island Cotton - Sedge Horsetail
• (16) Sedge Horsetail - Semeruco
• (17) Semeruco (Venezuela) - Seri Nisii
• (18) Seri Nisii - Shadbush
• (19) Shadbush - Sharp-Tooth Angelica
• (20) Sharp-Tooth Buckthorn - Sherbrook Rhododendron
• (21) Shere Khan Hosta - Shirley Daylily
• (22) Shirley Hosta - Shortbeak Sedge
• (23) Shortbeard Plumegrass - Shrove Tuesday
• (24) Shrub - Shumar
• (25) Shumard Oak - Siberian Iris
• (26) Siberian Iris - Sierra Foothills Silverpuffs
• (27) Sierra Fringed Gentian - Silkvine
• (28) Silkvine - Siloam Tiny Tears Daylily
• (29) Siloam Tiny Tim Daylily - Silver Wormwood
• (30) Silver Wormwood - Singapore)
• (31) Singapore-Holly - Siskiyou Sedge
• (32) Siskiyou Whitethorn - Skyland Ruby Daylily
• (33) Skyland Sprite Daylily - Slender Sun-Orchid
• (34) Slender Sunflower - Small Camas
• (35) Small Camas - Small-Flowered Morning-Glory
• (36) Small-Flowered Nemophila - Smith's Maiden Fern
• (37) Smith's Melicgrass - Smooth-Seed Wild-Bean
• (38) Smooth-Seeded Rush - Snap Bean
• (39) Snap Bean - Snap Bean
• (40) Snap Bean - Snow Festival Intermediate Bearded Iris
• (41) Snow Fiddler Miniature Tall Bearded Iris - Sochevichnik Baikalski
• (42) Sochevichnik Bledneyushchi - Solitary Lyric Daylily
• (43) Solitary Milkvetch - Sorbezzolo
• (44) Sorbier Des Alpes - Southern Adder´s-Tongue
• (45) Southern Adder´s-Tongue - Southern Red Cedar
• (46) Southern Red Lily - Spanish Glow Daylily
• (47) Spanish Gold - Spearscale
• (48) Spearscale - Spider Web Hens And Chicks
• (49) Spider Web Hens And Chicks - Spiny Kidneywood
• (50) Spiny Leaf Tip Rattan Palm - Spotted Beebalm
• (51) Spotted Beebalm - Spring Coralroot
• (52) Spring Coralroot - Squarebud Daisy
• (53) Squareflower - Standard Dwarf Bearded Iris
• (54) Standard Dwarf Bearded Iris - Standard Dwarf Bearded Iris
• (55) Standard Dwarf Bearded Iris - Star Cactus
• (56) Star Cactus - Stechender Spargel
• (57) Stechfichte - Sticky Western Rosinweed
• (58) Sticky Westringia - Stoloniferous Pussy-Toes
• (59) Stoloniferous Pussytoes - Strawberry
• (60) Strawberry - Strawberry-Shrub
• (61) Strawberry-Spinach - Subalpine Fleabane
• (62) Subalpine Goldenbush - Sulfur-Buckwheat
• (63) Sulfur-Buckwheat - Summer Snowflake
• (64) Summer Snowflake - Summertime Blues Daylily
• (65) Summertime Lettuce Lactuca Sativa - Sunjay Tomato
• (66) Sunkist American Arborvitae - Surfs Up Daylily
• (67) Surguri Rhododendron - Swamp Lousewort
• (68) Swamp Lousewort - Sweet Corn
• (69) Sweet Corn - Sweet Kathi Garden Heliotrope
• (70) Sweet Katie Spiderwort - Sweet Sedge
• (71) Sweet Segde - Sword Fern
• (72) Sword Fern - Sølvløn