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Sage
Sage ‘Extrakta’
Sage, Dwarf White
Sagina subulata
Salad Burnet
Salad Leaves/Salad Greens 'Misticanza' Mix
Salad Leaves/Salad Greens 'Red Wing Lettuce Mix'
Salad Leaves/Salad Greens 'Rocky Top Lettuce' Mix
Salad Leaves/Salad Greens 'Siamese Dragon' Stir-fry Mix
Salpiglossis sinuata ‘Kew Blue’
Salpiglossis sinuata ‘Little Friends’
Salpiglossis sinuata 'Bolero' F2 Hybrid
Salpiglossis sinuata True Wild Form
Salsify 'Sandwich Island Mammoth' (Heirloom Variety)
Salvia fruticosa
Salvia aethiopis
Salvia apiana
Salvia argentea
Salvia coccinea
Salvia coccinea 'Lady in Red'
Salvia dolichantha
Salvia farinacea 'Evolution'
Salvia farinacea 'Reference'
Salvia farinacea 'Silver'
Salvia farinacea 'Victoria Blue'
Salvia forskaohlei
Salvia glutinosa
Salvia haematodes
Salvia horminum ‘Marble Arch’ Formula Mixed
Salvia horminum 'Oxford Blue'
Salvia horminum 'Pink Sundae'
Salvia horminum 'White Swan'
Salvia horminum, Mixed
Salvia lavandulifolia
Salvia lyrata ‘Purple Volcano’
Salvia miltiorrhiza
Salvia nemorosa 'Rosenwein'
Salvia patens
Salvia patens ‘Blue Angel’
Salvia pratensis
Salvia pratensis, 'Ballet' Series ‘Swan Lake’
Salvia pratensis, 'Ballet' Series 'Meadow Ballet Blend'
Salvia pratensis, 'Ballet' Series 'Rose Rhapsody'
Salvia roemeriana
Salvia roemeriana 'Hot Trumpets'
Salvia sclarea
Salvia sclarea var. alba
Salvia sclarea var. turkestanica
Salvia splendens 'St. John's Fire'
Salvia tiliifolia
Salvia verbenaca
Salvia verticillata
Salvia x superba
Salvia x superba 'Blue Queen'
Salvia x superba 'Rose Queen'
Samanea saman
Sambucus caerulea
Sambucus sakhalinensis
Sanguinaria canadensis
Sanguisorba officinalis
Santolina chamaecyparissus
Santolina chamaecyparissus 'Santa'
Sanvitalia procumbens
Sanvitalia procumbens 'Orange Sprite'
Saponaria ocymoides
Saponaria officinalis
Saponaria officinalis var. plena
Saponaria vaccaria 'Pink Beauty'
Sarcococca humilis
Sarmienta repens
Sarracenia National Collection Hybrids, Non-anonymous Mixed
Sarracenia leucophylla
Sarracenia Mixed Species
Sarracenia purpurea
Saussurea nepalensis
Saxifraga Mossy varieties Mixed
Saxifraga granulata
Saxifraga oppositifolia var. latina
Saxifraga umbrosa 'Elliott's Variety'
Saxifraga x arendsii Rockery Hybrids Mixed
Saxifraga x macnabiana
Scabiosa Mixed Giant Hybrids
Scabiosa 'QIS' Formula Mixture
Scabiosa atropurpurea ‘Fata Morgana’
Scabiosa atropurpurea ‘Salmon Queen’
Scabiosa atropurpurea ‘Snowmaiden’
Scabiosa atropurpurea 'Chat Noir'
Scabiosa atropurpurea 'Dwarf Mixed Colours'
Scabiosa caucasica 'Fama'
Scabiosa caucasica 'Goldingensis'
Scabiosa caucasica House's Hybrids
Scabiosa caucasica 'Perfecta alba'
Scabiosa columbaria
Scabiosa columbaria ‘Misty Butterflies’
Scabiosa drakensbergensis
Scabiosa ochroleuca
Scabiosa ochroleuca 'Moon Dance'
Scabiosa rumelica
Scabiosa rumelica Pastel Shades Mixed
Scabiosa stellata 'Sternkugel'
Scabiosa succisa
Scaevola crassifolia
Sceletium tortuosum
Schizandra chinensis
Schizandra rubriflora
Schizanthus 'Angel Wings' Mixed
Schizanthus 'Dr. Badger's' Mixed
Schizanthus tricolor
Schizanthus x wisetonensis 'Hit Parade'
Schizanthus x wisetonensis 'Star Parade'
Schizopetalon walkeri
Schizostylis ‘Vibrant Scarlet’
Schizostylis coccinea Mixed Colours
Schlumbergera x bridgesii 'Noel' Hybrids
Scilla peruviana
Scilla hispanica
Scilla non-scripta True Wild Species
Scilla sibirica
Scilla sibirica var. alba
Scopolia carniolica
Scorzonera Large Black
Scurvy Grass
Scutellaria altissima
Scutellaria alpina ‘Arcobaleno’
Scutellaria diffusa
Scutellaria lateriflora
Sea Kale 'Lily White' (Heirloom Variety)
Sedum forsterianum 'Silver Stone'
Sedum acre
Sedum acre 'Oktoberfest'
Sedum Mixed Species
Sedum populifolium
Sedum pulchellum
Sedum roseum
Sedum selskianum 'Goldilocks'
Sedum spurium 'Purple Carpet'
Sedum spurium var. coccineum
Selinum carvifolia
Selinum tenuifolium
Sempervivum arachnoideum
Sempervivum hybridum and Mixed Species
Sempervivum tectorum
Senecio cineraria 'Silverdust'
Senna mexicana
Sequoia sempervirens
Sequoia gigantea
Sesbania formosa
Sesleria caerulea
Setaria italica ‘Hylander’
Setaria macrostachya
Sidalcea 'Party Girl'
Sidalcea 'Purpetta'
Sidalcea candida 'Bianca'
Sidalcea malvaeflora Stark's Hybrids
Sideritis scardica
Silene wherryi
Silene acaulis
Silene alba
Silene armeria
Silene laciniata ‘Jack Flash’
Silene maritima
Silene pensylvanica
Silene schafta
Silene schafta 'Persian Carpet'
Silene vulgaris
Silphium laciniatum
Silybum marianum
Sinningia Miniature Hybrids Mixed
Sinningia sellovii
Sisyrinchium 'North Star'
Sisyrinchium bellum
Sisyrinchium macrocarpon
Sisyrinchium Mixed Species
Sisyrinchium palmifolium
Sisyrinchium striatum
Smilacina racemosa
Smyrnium olusatrum
Smyrnium perfoliatum
Solanum crispum
Solanum laciniatum
Solanum sisymbrifolium
Soldanella alpina
Solidago canadensis 'Golden Baby'
Solidago riddellii
Solidago rigida
Sollya fusiformis
Sophora tomentosa
Sophora davidii
Sophora japonca
Sorbus
Sorbus 'Joseph Rock'
Sorbus aria
Sorbus aucuparia
Sorbus cashmiriana
Sorbus intermedia
Sorbus torminalis
Sorghum vulgare variety
Sorrel
Sparaxis 'Hadeco' Selection
Spartium junceum
Spathodea campanulata
Spearmint
Specularia speculum
Spinach ‘Matador’ (Organically sourced variety)
Spinach 'Bloomsdale'
Spinach 'Giant Noble' or 'Giant Thick Leaf' (Heirloom Variety)
Spinach 'Giant Winter'
Spinach 'Monnopa'
Spinach (Leaf) Beet ‘Erbette’
Spinach (Leaf) Beet Perpetual Spinach (Heirloom Variety)
Spinach, Malabar
Spinach, New Zealand Heirloom Variety
Spinach, Tree 'Magentaspreen'
Sporobolus airoides
Sporobolus heterolepsis
Stachys coccinea
Stachys germanica
Stachys lanata
Stachys lanata 'Silky Fleece'
Stachys officinalis
Stachyurus chinensis
Stapelia Mixed Species
Staphylea pinnata
Stauntonia hexaphylla
Stephanotis floribunda
Sterculia apetala
Stipa tirpa
Stipa arundinaceae
Stipa barbata 'Silver Feather'
Stipa capillata 'Lace Veil'
Stipa gigantea
Stipa pennata
Stipa pulcherrima
Stipa tenuifolia
Stipa tenuissima 'Pony Tails'
Strawberry (Alpine) ‘Golden Alexandria’
Strawberry (Alpine) 'Ruegen'
Strawberry (Alpine) 'Temptation'
Strawberry (Alpine) Yellow fruited
Strawberry Guava
Strelitzia juncea
Strelitzia reginae
Strelitzia reginae Yellow-flowered Form
Streptocarpus F1 Hybrid, 'Dibley's Dragons' Mixed
Streptocarpus rexii
Strobilanthes atropurpurea
Styrax japonica var. rubricalyx
Styrax japonica
Styrax obassia
Succisella inflexa 'Frosted Pearls'
Summer Savory
Summer Savory ‘Aromata’
Swede (Rutabaga) ‘Marian’
Sweet Corn F1 Hybrid, 'Early Xtra Sweet'
Sweet Corn F1 Hybrid, 'Tasty Gold'
Sweet Corn, Baby F1 Hybrid, 'Minipop'
Swiss Chard
Swiss Chard Organically sourced variety
Symphyandra hofmannii
Symphyandra wanneri
Symphytum grandiflorum ‘Sky-Blue-Pink’
Syringa emodi
Syringa microphylla
Syringa vulgaris
Syringa wolfii
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