• Sagina subulata
• Sagina subulata ‘Senior’
• Sagina subulata ‘Supreme’
• Salvia ‘Amber’
• Salvia ‘Amistad’
• Salvia ‘Azure Snow’
• Salvia ‘Ember’s Wish’
• Salvia ‘Feathers Flamingo’
• Salvia ‘Melba Magic Raspberry’
• Salvia ‘Pink Amistad’
• Salvia ‘Pretty in Pink’
• Salvia ‘Royal Bumble’
• Salvia (SALGOON LAKE GEORGE)
• Salvia argentea
• Salvia azurea var. grandiflora
• Salvia coahuilensis
• Salvia forskaohlei
• Salvia glutinosa
• Salvia greggii ‘Amethyst Lips’
• Salvia greggii ‘Blue Note’
• Salvia greggii ‘Lycioides’
• Salvia greggii MIRAGE ‘Violet’
• Salvia guaranatica ‘Black & Lavender Pink’
• Salvia guaranitica ‘Black & Blue’
• Salvia guaranitica ‘Plum Crazy’
• Salvia jamensis ‘Kolmacon’ (MAGICAL CONGO)
• Salvia jamensis ‘Nachtvlinder’
• Salvia jurisicii ‘Carina’
• Salvia microphylla ‘Belle de Loire’
• Salvia microphylla ‘Delice Aquamarine’
• Salvia microphylla ‘Hot Lips’
• Salvia microphylla ‘Little Kiss’
• Salvia microphylla ‘Pink Blush’
• Salvia microphylla ‘Salvinio Dark Purple’
• Salvia microphylla ‘Salvinio Lemon’
• Salvia microphylla ‘Salvinio Lilac’
• Salvia microphyllus ‘Carolus’
• Salvia nemorosa ‘Amethyst’
• Salvia nemorosa ‘Balsalarv’ (BLUE MARVEL)
• Salvia nemorosa ‘Blauhuegel’
• Salvia nemorosa ‘Blaukoenigin’
• Salvia nemorosa ‘Bumbleberry’
• Salvia nemorosa ‘Bumbleblue’
• Salvia nemorosa ‘Caradonna Compact’
• Salvia nemorosa ‘Caradonna Pink Inspiration’
• Salvia nemorosa ‘Caradonna’
• Salvia nemorosa ‘Eos’
• Salvia nemorosa ‘Flor Sal Dblue’ (SENSATION DEEP BLUE)
• Salvia nemorosa ‘Flor Sal Roz’ (SENSATION DEEP ROSE)
• Salvia nemorosa ‘Haeumanarc’ (MARCUS)
• Salvia nemorosa ‘Katsjing’
• Salvia nemorosa ‘Lubeca’
• Salvia nemorosa ‘Maihimmel’ (HEAVEN IN BLUE)
• Salvia nemorosa ‘Mainacht’
• Salvia nemorosa ‘Ostfriesland’
• Salvia nemorosa ‘Pink Beauty’
• Salvia nemorosa ‘Rügen’
• Salvia nemorosa ‘Rianne Pink’
• Salvia nemorosa ‘Rianne’
• Salvia nemorosa ‘Rose Marvel’
• Salvia nemorosa ‘Rose Queen’
• Salvia nemorosa ‘Schneehuegel’
• Salvia nemorosa ‘Sensation Compact Deep Blue’
• Salvia nemorosa ‘Sensation Compact Violet’
• Salvia nemorosa ‘Sensation Compact White’
• Salvia nemorosa ‘Sensation Medium Deep Blue’
• Salvia nemorosa ‘Sensation Medium Deep Rose’
• Salvia nemorosa ‘Sensation Medium Pink’
• Salvia nemorosa ‘Sensation Special Blue Bicol
• Salvia nemorosa ‘Serenade’
• Salvia nemorosa ‘Snow Kiss’
• Salvia nemorosa ‘Synchro Blue’
• Salvia nemorosa ‘Synchro Pink’
• Salvia nemorosa ‘Tänzerin’
• Salvia nemorosa ‘Viola Klose’
• Salvia nemorosa ‘Wesuwe’
• Salvia nevadensis
• Salvia officinalis
• Salvia officinalis ‘Berggarten’
• Salvia officinalis ‘Grete Stoelzle’
• Salvia officinalis ‘Grower’s Friend’
• Salvia officinalis ‘Nazareth’
• Salvia officinalis ‘Purpurascens’
• Salvia pratensis
• Salvia pratensis ‘Lilac Lipstick’
• Salvia pratensis ‘Rhapsody in Blue’
• Salvia pratensis ‘Rose Rhapsody’
• Salvia pratensis ‘Royal Crimson Distinction’
• Salvia pratensis ‘Swan Lake’
• Salvia sclarea
• Salvia sylvestris ‘Violet Queen’
• Salvia uliginosa
• Salvia verticillata
• Salvia verticillata ‘Endless Love’
• Salvia verticillata ‘Hannay’s Blue’
• Salvia verticillata ‘Purple Rain’
• Salvia verticillata ‘Smouldering Torches’
• Sanguisorba ‘All Time High’
• Sanguisorba ‘Beetlewings’
• Sanguisorba ‘Blackthorn’
• Sanguisorba ‘Burr Blanc’
• Sanguisorba ‘Can Be Raspberry’
• Sanguisorba ‘Cangshan Cranberry’
• Sanguisorba ‘Chocolate Tipp’
• Sanguisorba ‘Figaro’
• Sanguisorba ‘Henk Gerritsen’
• Sanguisorba ‘Joni’
• Sanguisorba ‘Little Angel’
• Sanguisorba ‘Maartjes Merlot’
• Sanguisorba ‘Northern Lights’
• Sanguisorba ‘Pink Brushes’
• Sanguisorba ‘Proud Mary’
• Sanguisorba ‘Scapino’
• Sanguisorba ‘Sotomayor’
• Sanguisorba ‘Tully’
• Sanguisorba ‘White Brushes’
• Sanguisorba albiflora
• Sanguisorba canadensis
• Sanguisorba hakusanensis
• Sanguisorba hakusanensis ‘Alster Luft’
• Sanguisorba hakusanensis ‘Lilac Squirrel’
• Sanguisorba menziesii
• Sanguisorba minor
• Sanguisorba obtusa
• Sanguisorba obtusa ‘Alba’
• Sanguisorba obtusa ‘Red Thunder’
• Sanguisorba officinalis
• Sanguisorba officinalis ‘Arnhem’
• Sanguisorba officinalis ‘Burgundy’
• Sanguisorba officinalis ‘Burr Blanc’
• Sanguisorba officinalis ‘First Star’
• Sanguisorba officinalis ‘Jam Session’
• Sanguisorba officinalis ‘Japan’
• Sanguisorba officinalis ‘Lemon Splash’
• Sanguisorba officinalis ‘Lum’
• Sanguisorba officinalis ‘Miss Elly’
• Sanguisorba officinalis ‘Morning Select’
• Sanguisorba officinalis ‘Pink Tanna’
• Sanguisorba officinalis ‘Rock and Roll’
• Sanguisorba officinalis ‘Tanna’
• Sanguisorba tenuifolia ‘Alba’
• Sanguisorba tenuifolia ‘Delicatesse’
• Sanguisorba tenuifolia ‘Korean Snow’
• Sanguisorba tenuifolia ‘Parviflora’
• Sanguisorba tenuifolia ‘Pink Elephant’
• Sanguisorba tenuifolia ‘Purple Tails’
• Sanguisorba tenuifolia ‘Purpurea’
• Santolina chamaecyparissus
• Santolina chamaecyparissus ‘Edward Bowles’
• Santolina rosmarinifolia
• Santolina rosmarinifolia ‘Lemon Fizz’
• Saponaria ‘Bressingham’
• Saponaria ocymoides
• Saponaria officinalis
• Saponaria officinalis ‘Betty Arnold’
• Saponaria officinalis ‘Rosea Plena’
• Saponaria sicula var. intermedia
• Saruma henryi
• Satureja montana
• Saxifraga ‘Coningsby Queen’
• Saxifraga arendsii rose
• Saxifraga cortusifolia ‘Beni-tsukasa’
• Saxifraga cortusifolia ‘Black Ruby’
• Saxifraga cortusifolia ‘Maigruen’
• Saxifraga cortusifolia ‘Sibyll Trelawney’
• Saxifraga cortusifolia ‘Wada’
• Saxifraga cortusifolia var. fortunei
• Saxifraga geum ‘Dixter Form’
• Saxifraga granulata
• Saxifraga urbium
• Saxifraga urbium ‘Variegata’
• Scabiosa argentea
• Scabiosa caucasica ‘Alba’
• Scabiosa caucasica ‘Clive Greaves’
• Scabiosa caucasica ‘Fama’
• Scabiosa caucasica ‘Miss Willmott’
• Scabiosa caucasica ‘Perfecta Alba’
• Scabiosa caucasica ‘Perfecta’
• Scabiosa caucasica ‘Staefa’
• Scabiosa columbaria
• Scabiosa columbaria ‘Balflutterite’ (Flutter Pure White)
• Scabiosa columbaria ‘Blue Note’
• Scabiosa columbaria ‘Butterfly Blue’
• Scabiosa columbaria ‘Pink Mist’
• Scabiosa ochroleuca
• Schizachyrium scoparium ‘Red Frost’
• Schizachyrium scoparium ‘The Blues’
• Schizachyrium scoparium ‘Wildwest’
• Schizostylis coccinea ‘Major’
• Schizostylis coccinea ‘Mrs. Hegarty’
• Scleranthus uniflorus ‘Hedgehog’
• Scrophularia auriculata
• Scrophularia grandiflora
• Scrophularia nodosa
• Scutellaria ‘Appalachian Blues’
• Scutellaria incana
• Scutellaria scordiifolia
• Sedum ‘Abbey Dore’
• Sedum ‘Back in Black’
• Sedum ‘Bertram Anderson’
• Sedum ‘Carl’
• Sedum ‘Firecracker’ (SUNSPARKLER)
• Sedum ‘Frosty Morn’
• Sedum ‘Gooseberry Fool’
• Sedum ‘Herbstfreude’
• Sedum ‘Indian Chief’
• Sedum ‘Lajos’ (AUTUMN CHARM)
• Sedum ‘Matrona’
• Sedum ‘Mr. Goodbud’
• Sedum ‘Purple Emperor’
• Sedum ‘Red Cauli’
• Sedum ‘Robustum’
• Sedum ‘Sunkissed’
• Sedum ‘Thundercloud’
• Sedum ‘Xenox’
• Sedum acre ‘Elegans’
• Sedum acre ‘Yellow Queen’
• Sedum album ‘Coral Carpet’
• Sedum cauticola
• Sedum cauticolum ‘Lidakense’
• Sedum cyaneum ‘Rosenteppich’
• Sedum cyaneum ‘Sachalin’
• Sedum ewersii
• Sedum floriferum ‘Weihenstephaner Gold’
• Sedum kamtschaticum
• Sedum lydium
• Sedum oreganum
• Sedum reflexum
• Sedum spathulifolium ‘Cape Blanco’
• Sedum spathulifolium ‘Purpureum’
• Sedum spectabile ‘Brilliant’
• Sedum spectabile ‘Hot Stuff’
• Sedum spectabile ‘Iceberg’
• Sedum spectabile ‘Key of Heaven’
• Sedum spectabile ‘Rosenteller’
• Sedum spectabile ‘Septemberglut’
• Sedum spectabile ‘Star Dust’
• Sedum spurium ‘Album’
• Sedum spurium ‘Fuldaglut’
• Sedum spurium ‘Purple Winter’
• Sedum spurium ‘Schorbusser Blut’
• Sedum spurium ‘Variegatum’
• Sedum spurium (SPOT ON) ‘Deep Rose’
• Sedum takesimense ‘Nonsitnal’ (ATLANTIS)
• Sedum telephium ‘Dark Magic’
• Sedum telephium ‘Karfunkelstein’
• Sedum telephium ‘Marina’
• Sedum telephium ‘Munstead Dark Red’
• Sedum telephium ‘Munstead Purple’
• Sedum telephium ‘Seduction Autumn Joy’
• Sedum telephium ‘Seduction Cherry Chocolate’
• Sedum telephium ‘Seduction Green Pink’
• Sedum telephium ‘Seduction Pink Passion’
• Sedum telephium ‘Seduction Rose Soiree’
• Sedum telephium ‘Thunderhead’
• Selaginella uncinata ‘Peacock’
• Selinum carvifolia
• Selinum wallichianum
• Sempervivum ‘Marijntje’
• Sempervivum ‘Rauer Kulm’
• Sempervivum ‘Silberkarneol’
• Sempervivum arachnoideum
• Serratula bulgarica
• Serratula seoanei
• Serratula tinctoria
• Seseli ponticum
• Sesleria ‘Greenlee Hybrid’
• Sidalcea ‘Candy Girl’
• Sidalcea ‘Elsie Heugh’
• Sidalcea ‘Little Princess’
• Sidalcea ‘Wine Red’
• Sidalcea candida
• Sidalcea oregana ‘Brilliant’
• Silene acaulis ‘Floribunda’
• Silene asterias
• Silene conica
• Silene delavayi
• Silene dioica
• Silene latifolia subsp. alba
• Silene noctiflora
• Silene nutans
• Silene schafta
• Silene uniflora ‘Weisskehlchen’
• Silene vulgaris
• Silphium laciniatum
• Silphium mohrii
• Silphium perfoliatum
• Silphium therebinthinaceum
• Sisyrinchium angustifolium ‘Devon Skies’
• Sisyrinchium californicum
• Smilacina japonica
• Smilacina racemosa
• Solidago ‘Barseven’ (SWEETY)
• Solidago ‘Dansolitlem’ (LITTLE LEMON)
• Solidago ‘Dennis Strange’
• Solidago ‘Golden Dwarf’
• Solidago ‘Golden Mosa’
• Solidago ‘Loysder Crown’
• Solidago ‘Praecox’
• Solidago ‘Strahlenkrone’
• Solidago caesia
• Solidago drummondii
• Solidago rugosa
• Solidago rugosa ‘Fireworks’
• Solidago shortii ‘Solar Cascade’
• Solidago sphacelata ‘Golden Fleece’
• Solidago virgaurea ‘Variegata’
• Solidago virgaurea var. minutissima
• Solidaster luteus ‘Lemore’
• Sphaeralcea ‘Childerley’
• Spigelia marilandica ‘Little Redhead’
• Spigelia marilandica ‘Ragin Cajun’
• Spilanthes oleracea ‘Bull’s Eye’
• Spiranthes ‘Chadd’s Ford’
• Stachys byzantina
• Stachys byzantina ‘Big Ears’
• Stachys byzantina ‘Cotton Boll’
• Stachys byzantina ‘Silver Carpet’
• Stachys byzantina ‘Tiny Ears’
• Stachys officinalis
• Stachys officinalis `Bride`
• Stachys officinalis ‘Miss Magenta’
• Stachys officinalis ‘Pinky’
• Stachys officinalis ‘Rosea’
• Stachys officinalis ‘Ukkie’
• Stachys palustris
• Stachys recta
• Stachys sieboldii
• Stachys sylvatica
• Stellaria holostea
• Stevia rebaudiana
• Stipa capillata
• Stokesia laevis ‘Mels Blue’
• Stokesia laevis ‘Peachie’s Pick’
• Stokesia laevis ‘Purple Parasols’
• Strobilanthes attenuatus ‘Blue Carpet’
• Succisa pratensis
• Succisa pratensis ‘Buttermilk’
• Succisella inflexa ‘Frosted Pearls’
• Symphytum azureum
• Symphytum grandiflorum
• Symphytum grandiflorum ‘Blaue Glocke’
• Symphytum grandiflorum ‘Hidcote Blue’
• Symphytum grandiflorum ‘Hidcote Pink’
• Symphytum grandiflorum ‘Wisley Blue’
• Symphytum officinale
• Symphytum officinale ‘Moulin Rouge’