Common plant names.
Below is a list of plant names beginning with the letter 'S', listed by common name. Click a letter of the alphabet to see a list of plants with common names beginning with that letter. Alternatively click here to see the plants listed alphabetically by botanic name.
Common names: ABCDEFGHIJKLMNOPQRSTUVWXYZ
| Common name | Botanic name |
|---|---|
| Sabra spike sage | Salvia confertiflora |
| Sacred bamboo, Heavenly bamboo | Nandina domestica |
| Sacred Fir, Oyamel Fir | Abies religiosa |
| Safflower | Carthamus tinctoria |
| Sage | Salvia |
| Sage | Salvia microphylla 'Hot Lips' |
| Sage | Salvia x jamensis 'Hot Lips' |
| Sage | Salvia 'Dyson's Joy' |
| Sage | Salvia 'Joy' |
| Sage | Salvia greggii 'Joy' |
| Sage, Common sage | Salvia officinalis |
| Sainfoin | Onobrychis viciifolia |
| Salad burnet, Pimpinella | Sanguisorba minor |
| Salad rocket, Rocket, Garden rocket, Arugula | Eruca sativa |
| Salad rocket | Eruca vesicaria subsp. sativa |
| Saltmarsh flat-sedge | Blysmus rufus |
| Saltmarsh rush | Juncus gerardii |
| Salvia | Salvia x superba |
| Sand cat's tail | Phleum arenarium |
| Sand couch | Elytrigia juncea |
| Sand crocus | Romulea columnae |
| Sand Sedge | Carex arenaria |
| Santa Cruz water lily | Victoria cruziana |
| Sapphire sage, Sage, Hummingbird sage, Anise scented sage | Salvia guaranitica |
| Sapphire sage, Sage, Hummingbird sage, Anise scented sage | Salvia guaranitica 'Argentine Skies' |
| Sapphire sage, Sage, Hummingbird sage, Anise scented sage | Salvia guaranitica 'Black and Blue' |
| Sapphire sage, Sage, Hummingbird sage, Anise scented sage | Salvia guaranitica 'Blue Enigma' |
| Sapphire sage, Sage, Hummingbird sage, Anise scented sage | Salvia guaranitica 'Purple Majesty' |
| Sargent's cherry | Prunus x schmittii |
| Sassafras, Ague tree | Sassafras albidum |
| Saw-wort | Serratula tinctoria |
| Saw-wort | Serratula tinctoria var. seoanei |
| Sawara Cypress | Chamaecyparis pisifera |
| Scabious | Scabiosa atropurpurea |
| Scabious | Scabiosa caucasica 'Chile Black' |
| Scabious | Scabiosa 'Perfecta blue' |
| Scandinavian small-reed | Calamagrostis purpurea |
| Scorched alpine sedge | Carex atrofusca |
| Scotch rose | Rosa pimpinellifolia var. harisonii |
| Scotch Rose | Rosa spinosissima |
| Scotch Thistle | Onopordum acanthium |
| Scots pine | Pinus sylvestris |
| Scots pine | Pinus sylvestris 'Watereri' |
| Scottish asphodel | Tofieldia pusilla |
| Scottish primrose | Primula scotica |
| Scottish small-reed | Calamagrostis scotica |
| Scouler penstemon | Penstemon fruticosus var. scouleri |
| Scouler penstemon | Penstemon scouleri |
| Sea arrowgrass | Triglochin maritimum |
| Sea barley | Hordeum marinum |
| Sea beet | Beta vulgaris subsp. maritima |
| Sea buckthorn, Sea-Buckthorn | Hippophae rhamnoides |
| Sea clubrush, Cosmopolitan bulrush | Bolboschoenus maritimus |
| Sea couch | Elytrigia atherica |
| Sea fern-grass | Catapodium marinum |
| Sea holly | Eryngium agavifolium |
| Sea holly | Eryngium bourgatii |
| Sea holly | Eryngium bourgatii 'Oxford Blue' |
| Sea holly | Eryngium bourgatii 'Picos Blue' PBR |
| Sea holly | Eryngium giganteum 'Miss Willmott's Ghost' |
| Sea holly | Eryngium giganteum 'Silver Ghost' |
| Sea kale | Crambe maritima |
| Sea rush | Juncus maritimus |
| Sea Squill, Crusaders' Spears | Urginea maritima |
| Sea Squill, Crusaders' Spears | Drimia maritima |
| Sea thrift | Armeria maritima |
| Sea urchin cactus, Desert cactus | Echinopsis |
| Sea urchin cactus | Echinopsis scopulicola |
| Sedge | Carex |
| Sedge | Carex flagellifera |
| Sedge | Cyperus alternifolius |
| Sedge | Kobresia |
| Sedum | Hylotelephium 'Matrona' |
| Seea Holly | Eryngium x zabelii 'Jos Eiking' |
| Seea Holly | Eryngium x zabelii 'Big Blue' |
| Self heal | Prunella |
| Self heal | Prunella vulgaris |
| Sensitive fern | Onoclea sensibilis |
| Serrano Chilli | Capsicum anuum 'Serrano' |
| Serviceberry | Amelanchier |
| Sessie oak | Quercus petraea |
| Sessile English oak | Quercus x rosacea |
| Shaggy Inkcap | Coprinus comatus |
| Shallot, Scallion | Allium cepa var. aggregatum Aggregatum Group |
| Shallot, Scallion | Allium cepa Aggregatum Group 'Yellow Moon' |
| Shamrock | Oxalis |
| Sharp club rush | Schoenoplectus pungens |
| Sharp flowered rush | Juncus acutiflorus |
| Sharp rush | Juncus acutus |
| Sharp-leaved pondweed | Potamogeton acutifolius |
| Shasta daisy | Leucanthemum x superbum 'Aglaia' |
| Shasta daisy | Leucanthemum x superbum 'Gold rush' |
| Shasta Daisy | Leucanthemum x superbum ('Goldfinch'PBR) |
| Shasta Daisy | Leucanthemum ‘Banana Cream’ |
| Sheathed sedge | Carex vaginata |
| Sheep's fescue | Festuca ovina var. glauca |
| Sheeps bit scabious | Jasione montana |
| Shenandoah switch grass | Panicum virgatum 'Shenandoah' |
| Sheperd's purse | Capsella bursa-pastoris |
| Shetland mouseear | Cerastium nigrescens |
| Shetland pondweed | Potamogeton rutilus |
| Shining pondweed | Potamogeton lucens |
| Shirasawa maple | Acer shirasawanum MOONRISE 'Munn 001'PBR |
| Shiso, Perilla | Perilla frutescens var. crispa |
| Shortawn foxtail, Orange foxtail | Alopecurus aequalis |
| Shrubby honeysuckle, Winter-flowering honeysuckle, Winter honeysuckle | Lonicera fragrantissima |
| Shrubby honeysuckle, Winter-flowering honeysuckle, Winter honeysuckle | Lonicera fragrantissima subsp. fragrantissima |
| Shrubby horehound | Ballota acetabulosa |
| Shrubby ragwort | Brachyglottis Dunedin Group 'Sunshine' |
| Siberian dogwood | Cornus alba 'Sibirica Variegata' |
| Siberian iris | Iris sibirica |
| Siberian iris | Iris sibirica 'Flight of Butterflies' |
| Siberian iris | Iris sibirica 'Sparkling Rose' |
| Siberian Larkspur | Delphinium grandiflorum 'Summer Nights' |
| Siberian Melick 'Alba', Siberian Melic 'Alba' | Melica altissima 'Alba' |
| Siberian squill | Scilla siberica |
| Sichuan pepper tree | Zanthoxylum simulans |
| Sieber's crocus | Crocus sieberi |
| Silk tassel bush | Garrya elliptica |
| Silk tassel bush | Garrya elliptica 'Evie' |
| Silk-tassel bush | Garrya elliptica 'James Roof' |
| Silky wisteria | Wisteria brachybotrys f. albiflora 'Shiro Kapitan' |
| Silky-spike Melick, Silky-spike Melic | Melica ciliata |
| Silver banner grass | Miscanthus sacchariflorus |
| Silver banner grass | Miscanthus sacchariflorus 'Roland' |
| Silver Bell | Halesia carolina |
| Silver birch | Betula pendula |
| Silver germander | Teucrium ackermannii |
| Silver hairgrass | Aira caryophyllea |
| Silver inch plant | Tradescantia zebrina |
| Silver maple, Sugar maple, White maple, Soft maple | Acer saccharinum |
| Silver maple, Sugar maple, White maple, Soft maple | Acer dasycarpum |
| Silver maple, Sugar maple, White maple, Soft maple | Acer eriocarpum |
| Silver nickel vine | Dichondra argentea 'Silver Falls' |
| Silver sage | Salvia argentea |
| Silver Spear | Astelia chathamica 'Silver Spear' |
| Silver thyme, Thyme | Thymus vulgaris 'Silver Posie' |
| Sitka spruce | Picea sitchensis |
| Skullcap | Scutellaria lateriflora |
| Slender club rush | Isolepis cernua |
| Slender cock's foot | Dactylis polygama |
| Slender cottongrass | Eriophorum gracile |
| Slender naiad | Najas flexilis |
| Slender rush | Juncus tenuis |
| Slender sedge | Carex lasiocarpa |
| Slender soft brome | Bromus lepidus |
| Slender spike rush | Eleocharis uniglumis |
| Slender tufted sedge | Carex acuta |
| Slender wild oat | Avena barbata |
| Slender-leaved pondweed | Potamogeton filiformis |
| Small cord grass | Spartina maritima |
| Small lovegrass | Eragrostis minor |
| Small pondweed | Potamogeton berchtoldii |
| Small scabious | Scabiosa columbaria |
| Small spike false nettle, False nettle | Boehmeria cylindrica |
| Small sweet-grass, Waxy mannagrass | Glyceria declinata |
| Small-flowered gladiolus | Gladiolus 'Atom' |
| Small-flowered gladiolus | Gladiolus 'Nymph' |
| Small-flowered gladiolus | Gladiolus x colvillei 'The Bride' |
| Small-leaved Cotoneaster | Cotoneaster microphyllus |
| Small-leaved lime | Tilia cordata |
| Small-white orchid | Pseudorchis albida |
| Smaller cat's tail | Phleum bertolonii |
| Smilo grass | Oryzopsis miliacea |
| Smith's brome | Bromus pseudosecalinus |
| Smoke bush | Cotinus coggygria |
| Smoke bush | Cotinus coggygria 'Royal Purple' |
| Smooth brome | Bromus racemosus |
| Smooth cord grass | Spartina alterniflora |
| Smooth finger grass, Small crabgrass | Digitaria ischaemum |
| Smooth meadow grass | Poa pratensis |
| Smooth-leaved elm | Ulmus minor var. minor |
| Smooth-stalked sedge | Carex laevigata |
| Snake Plant, Snake Tongue, Mother-in-law's tongue, Devil's Toungue | Dracaena trifasciata subsp. trifasciata |
| Snake Plant | Sansevieria trifasciata var. laurentii |
| Snake's head fritillary, Snake's head lily, Spotted head fritillary, chequered daffodil, chequered lily, guinea flower, leper lily | Fritillaria meleagris |
| Snake's head fritillary, Snake's head lily, Spotted head fritillary, chequered daffodil, chequered lily, guinea flower, leper lily | Fritillaria meleagris 'Spring Bells' |
| Snake's-head iris | Hermodactylus tuberosus |
| Snake-bark maple | Acer grosseri |
| Snakebark maple 'Red Flamingo' | Acer 'Red Flamingo' |
| Snakebark maple 'Red Flamingo' | Acer x conspicuum 'Red Flamingo' |
| Snapdragon | Antirrhinum majus |
| Snapdragon | Antirrhinum majus 'Dwarf Large Flowered' |
| Snapdragon | Antirrhinum majus 'Intermediate' |
| Snapdragon | Antirrhinum majus 'Magic Carpet' |
| Snapdragon | Antirrhinum majus 'Majestic' |
| Snapdragon | Antirrhinum majus 'Nanum' |
| Snapdragon | Antirrhinum majus 'Tip Top' |
| Sneeze Weed, Dog Fennel | Eupatorium capillifolium |
| Sneezeweed | Helenium 'Goldrausch' |
| Sneezeweed | Helenium 'Marmalade' |
| Sneezeweed | Helenium autumnale 'Moerheim Beauty' |
| Sneezeweed | Helenium 'Strawberry Sundae' |
| Sneezeweed, Helen's flower, Perennial daisy | Helenium |
| Sneezewort | Achillea ptarmica |
| Snow in summer | Cerastium tomentosum |
| Snowdon lily | Lloydia serotina |
| Snowdrop, Snow piercers, Candlemas flower, Snowbells, Dewdrops | Galanthus |
| Snowdrop, Snow piercers | Galanthus 'John Gray' |
| Snowdrop | Galanthus nivalis 'Flore Pleno' |
| Snowdrop | Galanthus nivalis 'S. Arnott' |
| Snowdrop | Galanthus atkinsii |
| Snowdrop | Galanthus 'Atkinsii' |
| Snowdrop tree | Halesia monticola |
| Snowdrop, Common snowdrop, Snow piercers | Galanthus nivalis |
| Snowy Mespilus, Serviceberry | Amelanchier lamarckii |
| Snowy wood rush | Luzula nivea |
| Soapwort, Bouncing Bet | Saponaria officinalis |
| Society Garlic | Tulbaghia violacea |
| Society Garlic | Tulbaghia violacea 'Silver Lace' |
| Soft brome | Bromus hordeaceus |
| Soft rush | Juncus effusus |
| Soft-leaved sedge | Carex montana |
| Solomon's seal | Polygonatum x hybridum |
| Solomon's-seal | Polygonatum multiflorum |
| Somerset hair grass | Koeleria vallesiana |
| Somerset rush | Juncus subulatus |
| Sorbus | Sorbus |
| Sorrel, Broad-leaved sorrel | Rumex acetosa |
| Sour cherry | Prunus avium 'Stella Compact' |
| Sour cherry | Prunus avium 'Van' |
| South African cornflag | Chasmanthe floribunda |
| South American waterweed | Elodea callitrichoides |
| Southern beech | Nothofagus dombeyi |
| Southern marsh orchid | Dactylorhiza praetermissa |
| Southern wood rush | Luzula forsteri |
| Southernwood, Sagebrush | Artemisia abrotanum |
| Soya Bean | Glycine max |
| Spanish bayonet, Our Lord's candle | Hesperoyucca whipplei |
| Spanish bluebell | Hyacinthoides hispanica |
| Spanish gorse | Genista hispanica |
| Spanish iris | Iris xiphium |
| Spanish lavender, French lavender | Lavandula stoechas |
| Spanish moss | Tillandsia usneoides |
| Spear thistle, bull thistle, common thistle | Cirsium vulgare |
| Spearmint | Mentha spicata |
| Speedwell | Veronica spicata 'Red Fox' |
| Spider flowers | Grevillea |
| Spider lily 'Sunshine Charm' | Tradescantia x andersoniana Andersoniana Group 'Sunshine Charm'PBR |
| Spider plant | Chlorophytum comosum |
| Spiderwort | Tradescantia virginiana |
| Spiked sedge | Carex spicata |
| Spiked speedwell | Veronica INSPIRE PINK ('Yabpin' PBR) |
| Spiked star of Bethlehem | Ornithogalum pyrenaicum |
| Spiked wood rush | Luzula spicata |
| Spinach | Spinacia oleracea |
| Spinach | Spinacia oleracea 'King of Denmark' |
| Spinach | Spinacia oleracea 'New Zealand' |
| Spinach | Spinacia oleracea 'Novires' F1 hybrid |
| Spinach, Summer spinach | Spinacia oleracea 'Bloomsdale' |
| Spindle tree, Spindle | Euonymus |
| Spindle tree, Spindle | Euonymus europaeus |
| Spineless butcher's broom | Ruscus hypoglossum |
| Spiral ginger, Raspberry yogurt plant | Costus vargasii |
| Spiral tasselweed | Ruppia cirrhosa |
| Spirea (a common and often used misspelling), Meadowsweet | Spiraea |
| Spleenwort | Asplenium |
| Spotted deadnettle | Lamium maculatum GOLDEN ANNIVERSARY ('Dellam'PBR) |
| Spotted fritillaries | Fritillaria atropurpurea |
| Spotted joe-pyeweed, Spotted Joe Pye weed | Eutrochium maculatum |
| Spreading meadow grass | Poa humilis |
| Spring cinquefoil, Spotted cinquefoil | Potentilla neumanniana |
| Spring cinquefoil, Spotted cinquefoil | Potentilla verna |
| Spring crocus | Crocus vernus |
| Spring onion, Scallion, green onion, salad onion | Allium cepa 'White Lisbon' |
| Spring pea, Spring bitter vetch, Sweet pea | Lathyrus vernus |
| Spring sedge | Carex caryophyllea |
| Spring snowflake, Snowflake | Leucojum vernum |
| Spring squill | Scilla verna |
| Spring starflower | Ipheion uniflorum |
| Spurge | Euphorbia amygdaloides |
| Spurge, Euphorbia, Milkweed | Euphorbia amygdaloides 'Purpurea' |
| Spurge, Euphorbia | Euphorbia characias |
| Spurge, Euphorbia | Euphorbia griffithii 'Dixter' |
| Spurge, Euphorbia | Euphorbia polychroma |
| Square-stemmed bamboo | Chimonobambusa quadrangularis |
| Squash | Cucurbita maxima |
| Squash | Cucurbita 'Jack be little' |
| Squash | Cucurbita 'Sunburst' |
| Squash | Cucurbita 'Sweet dumpling' |
| Squirrel-tail fescue | Vulpia bromoides |
| St John's wort, Goldencup | Hypericum patulum 'Hidcote' |
| St John's Wort | Hypericum perforatum |
| St Patrick's cabbage | Saxifraga spathularis |
| Stag's horn sumach, The staghorn sumac, velvet sumac, vinegar tree | Rhus typhina |
| Stag's horn sumach | Rhus typhina 'Laciniata' |
| Star jasmine, Chinese star jasmine, Confederate jasmin | Trachelospermum jasminoides |
| Star of Bethlehem | Ornithogalum angustifolium |
| Star sedge | Carex echinata |
| Starfruit | Damasonium alisma |
| Starved wood sedge | Carex depauperata |
| Steel blue oat grass | Helictotrichon sempervirens |
| Stemless Gentian | Gentiana acaulis |
| Stiff saltmarsh grass | Puccinellia rupestris |
| Stiff Sedge | Carex bigelowii |
| Stinkhorns | Phallus |
| Stinking iris, Roast-beef plant | Iris foetidissima |
| Stinking nanny, Ragwort, Cankerwort | Senecio jacobaea |
| Stock | Matthiola 'Anthony' |
| Stonecrop, Ice plant | Sedum |
| Stonecrop | Sedum spectabile 'Autumn Joy' |
| Stonecrop, Ice plant | Sedum Herbstfreude Group 'Herbstfreude' |
| Straw flower | Bracteantha bracteata |
| Strawberry | Fragaria |
| Strawberry | Fragaria x ananassa 'Malwina' |
| Strawberry | Fragaria x ananassa 'Marshmello' |
| Strawberry | Fragaria x ananassa 'Mignonette' |
| Strawberry | Fragaria x ananassa 'Vibrant' |
| Strawberry | Fragaria x ananassa 'Viva Rosa' |
| Strawberry | Fragaria x ananassa 'Elan' |
| Strawberry | Fragaria x ananassa 'Lusa' |
| Strawberry | Fragaria x ananassa 'Malling Centenary' |
| Strawberry foxglove | Digitalis x mertonensis |
| Strawberry tree | Arbutus |
| Strawberry Tree, Hybrid Strawberry Tree | Arbutus x andrachnoides |
| Strawberry tree, Cane apple | Arbutus unedo |
| Strawflower, Everlasting flower, Immortelle | Helichrysum bracteatum |
| String of Hearts, Rosary Vine | Ceropegia linearis subsp. woodii |
| String sedge | Carex chordorrhiza |
| Striped Prairie Cord Grass, Golden-Edged Prairie Cord Grass | Spartina pectinata 'Aureomarginata' |
| Sugar beet | Beta vulgaris subsp. cicla var. saccharifera |
| Sugar maple, Silver maple, Rock maple, White maple, Soft maple | Acer saccharum |
| Sugar maple 'Green Mountain' | Acer saccharum 'Green Mountain' |
| Sugar snap, Snap pea | Pisum sativum var. macrocarpon |
| Sulphur clover | Trifolium ochroleucum |
| Summer lady's tresses | Spiranthes aestivalis |
| Summer savory | Satureja hortensis |
| Summer snowflake, Loddon lily | Leucojum aestivum |
| Sun rose | Cistus |
| Sunflower | Helianthus 'Lemon Queen' |
| Sunflower | Helianthus 'Sunray' |
| Sunflower | Helianthus 'Sunsation' |
| Sunflower | Helianthus annuus |
| Sunflower | Helianthus annuus 'Cinnamon Sun' |
| Sunflower | Helianthus annuus 'Pastiche' |
| Sunflower | Helianthus annuus 'Prado Red' |
| Sunflower | Helianthus annuus 'Russian Giant' |
| Sunflower | Helianthus annuus 'Velvet Queen' |
| Sunflower | Helianthus atrorubens 'Monarch' |
| Sunflower | Helianthus salicifolius |
| Sunflower | Helianthus annuus 'Claret' |
| Sunflower | Helianthus annuus 'Red Sun' |
| Sunflower | Helianthus debilis |
| Sunflower | Helianthus debilis 'Vanilla Ice' |
| Sunflower | Helianthus debilis 'Moonwalker' |
| Sunflower | Helianthus 'Eversun' |
| Sunflower | Helianthus 'Mammoth' |
| Swamp Cypress | Taxodium distichum |
| Swamp lily, White Powell lily | Crinum x powellii 'Album' |
| Swamp meadow grass | Poa palustris |
| Swede, Rutabaga | Brassica napus subsp. rapifera 'Invitation' |
| Swede, Swedish turnip, Neep | Brassica napus var. napobrassica |
| Swede, Swedish turnip, Neep | Brassica napus var. napobrassica 'Tweed' |
| Sweet alyssum | Lobularia maririma |
| Sweet box | Sarcococca hookeriana var. digyna |
| Sweet Box, Winter Box | Sarcococca hookeriana WINTER GEM ('Pmoore03' PBR) |
| Sweet briar rose | Rosa rubiginosa |
| Sweet cherry | Prunus avium |
| Sweet cherry | Prunus avium 'Merton Glory' |
| Sweet cherry | Prunus avium 'Kordia' |
| Sweet chestnut | Castanea sativa |
| Sweet cicely | Myrrhis odorata |
| Sweet corn | Zea mays var. rugosa 'Honeydew' |
| Sweet flag, Variegated flag iris, Flag iris | Acorus calamus 'Variegatus' |
| Sweet gum | Liquidambar styraciflua |
| Sweet marjoram | Origanum majorana |
| Sweet pea | Lathyrus 'Appeal' |
| Sweet pea | Lathyrus 'Spencer Mix' |
| Sweet pea | Lathyrus odoratus |
| Sweet pea | Lathyrus odoratus 'Champagne Bubbles' |
| Sweet pea | Lathyrus odoratus 'Erewhon' |
| Sweet pea | Lathyrus odoratus 'Matucana' |
| Sweet pea | Lathyrus odoratus 'Promise' |
| Sweet pea | Lathyrus 'Sir Jimmy Shand' |
| Sweet pea | Lathyrus 'Mumsie' |
| Sweet pea | Lathyrus 'Adam Hastings' |
| Sweet pea | Lathyrus 'Platinum Sensation' |
| Sweet pea | Lathyrus 'Charlie's Angels' |
| Sweet pea | Lathyrus odoratus 'Cupani' |
| Sweet pepper | Capsicum 'Cabeneros' |
| Sweet Pepper | Capsicum 'Sweet Cupid' |
| Sweet pepper, Yellow pepper | Capsicum 'Mohawk' |
| Sweet rocket | Hesperis matronalis 'Alba Plena' |
| Sweet rocket, Dame's violet | Hesperis matronalis |
| Sweet vernalgrass | Anthoxanthum odoratum |
| Sweet violet | Viola 'Rubra' |
| Sweet violet, Parma violet | Viola odorata |
| Sweet violet | Viola 'Coeur d' Alsace' |
| Sweet violet | Viola odorata 'Coeur d' Alsace' |
| Sweet violet | Viola odorata 'Aurea' |
| Sweet violet | Viola odorata 'Miracle Mixed' |
| Sweet violet | Viola odorata 'Odorata Rubra' |
| Sweet violet | Viola 'Bournemouth Gem' |
| Sweet William, Carnation, Dianthus | Dianthus 'Amazon Rose Magic' (Amazon Series) |
| Sweet William, Bearded pink, London Pride. | Dianthus barbatus |
| Sweet woodruff, Yew | Asperula odorata |
| Sweet-grass | Glyceria |
| Sweet-scented joe-pyeweed, Trumpet weed, Joe Pye weed, Gravel weed | Eutrochium purpureum |
| Sweetcorn, Ornamental Corn, maize, Sweet corn | Zea mays |
| Sweetcorn, Maize | Zea mays 'Earliking' |
| Sweetcorn, Maize | Zea mays 'Mini Pop' |
| Sweetcorn, Sweet corn, Sugar corn | Zea mays var. rugosa |
| Sweetspires | Itea |
| Swiss chard, Seakale beet,Spinach beet | Beta vulgaris subsp. cicla |
| Swiss chard, Ruby chard, Rhubard chard, Seakale beet | Beta vulgaris subsp. cicla var. flavescens |
| Swiss chard, Ruby chard, Rhubard chard, Spinach beet | Beta vulgaris subsp. cicla var. flavescens 'Bright Lights' |
| Swiss willow | Salix helvetica |
| Swiss-cheese Plant | Monstera deliciosa |
| Switch grass | Panicum virgatum |
| Switch Grass | Panicum virgatum 'Rehbraun' |
| Sword fern, Boston fern | Nephrolepis exaltata |
| Sword lily | Gladiolus 'Esta Bonita' |
| Sword lily | Gladiolus 'Green Woodpecker' |
| Sycamore (UK), Sycamore maple (USA) | Acer pseudoplatanus |
| Sycamore, Sycamore maple | Acer pseudoplatanus 'Brilliantissimum' |
