Plants: S

• Silver Buffaloberry Shepherdia argentea Berry
• Silver Bush Lupine Lupinus albifrons
• Silver Carpet Dymondia margaretae Creeping perennial
• Silver Ponyfoot Dichondra argentea
• Silver Sage Salvia argentea
• Silver Sedge Carex platyphylla Grass sedge
• Silverberry Elaeagnus ebbingei Berry
• Silverbush Convolvulus cneorum Flowering shrub
• Silverleaf Phacelia Phacelia hastata Wildflower
• Silvermound Artemisia schmidtiana Creeping perennial
• Silverweed Argentina anserina Creeping perennial
• Silvery Lupine Lupinus argenteus Wildflower
• Sims's Azalea Rhododendron simsii Flowering shrub
• Singleleaf Pinyon Pinus monophylla Nut
• Singleseed Juniper Juniperus squamata Low shrub
• Siskiyou Lewisia Lewisia cotyledon Wildflower
• Sitka Willow Salix sitchensis
• Skunkbush Sumac Rhus trilobata Low shrub
• Sky Blue Aster Symphyotrichum oolentangiense Wildflower
• Sky Lupine Lupinus nanus Wildflower
• Slender Cinquefoil Potentilla gracilis Wildflower
• Slender Deutzia Deutzia gracilis Flowering shrub
• Small Camas Camassia quamash Root
• Small Yellow Foxglove Digitalis lutea Wildflower
• Small's Penstemon Penstemon smallii Wildflower
• Small-Flowered Penstemon Penstemon procerus Wildflower
• Small-Leaf Globemallow Sphaeralcea parvifolia Wildflower
• Smoke Tree Cotinus coggygria Flowering shrub
• Smooth Beardtongue Penstemon laevigatus
• Smooth Blue Aster Symphyotrichum laeve Wildflower
• Smooth Hydrangea Hydrangea arborescens Flowering shrub
• Smooth Phlox Phlox glaberrima Garden perennial
• Smooth Rose Rosa blanda Flowering shrub
• Smooth Sumac Rhus glabra Fruiting
• Snake's Head Fritillary Fritillaria meleagris Bulb
• Snap Peas Pisum sativum var. macrocarpon Legume
• Snapdragon Antirrhinum majus Garden annual
• Sneezeweed Helenium autumnale Garden perennial
• Sneezewort Achillea ptarmica Herb
• Snow Azalea Rhododendron mucronatum Flowering shrub
• Snow Buckwheat Eriogonum niveum Wildflower
• Snow Crocus Crocus chrysanthus Garden perennial
• Snow-in-Summer Cerastium tomentosum Creeping perennial
• Snow-on-the-Mountain Euphorbia marginata Garden annual
• Snowbrush Ceanothus velutinus Flowering shrub
• Snowdrop Galanthus nivalis Bulb
• Snowdrop Anemone Anemone sylvestris Creeping perennial
• Snowy Woodrush Luzula nivea Grass
• Soap Aloe Aloe maculata Succulent
• Soapweed Yucca Yucca glauca Wildflower
• Soapwort Saponaria officinalis Garden perennial
• Society Garlic Tulbaghia violacea
• Solitary Clematis Clematis integrifolia Vine
• Sonoma Sage Salvia sonomensis Creeping perennial
• Sorghum Sorghum bicolor Grain
• Sorrel Rumex acetosa Leafy
• Sour Cherry Prunus cerasus Tree fruit
• Sourwood Oxydendrum arboreum Flowering tree
• Southern Blue Flag Iris virginica Garden perennial
• Southern Catalpa Catalpa bignonioides Flowering tree
• Southern Crabapple Malus angustifolia Flowering tree
• Southern Indica Azalea Rhododendron indicum Flowering shrub
• Southern Magnolia Magnolia grandiflora Flowering tree
• Southern Shield Fern Thelypteris kunthii Creeping perennial
• Southern Wood Fern Dryopteris ludoviciana Fern
• Soybean Glycine max Legume
• Spanish Bluebell Hyacinthoides hispanica Bulb
• Spanish Flag Ipomoea lobata Vine
• Spanish Lavender Lavandula stoechas
• Spanish Needles Bidens alba Wildflower
• Spanish Stonecrop Sedum hispanicum Garden annual
• Sparkleberry Vaccinium arboreum Berry
• Spelt Triticum spelta Grain
• Spider Flower Cleome hassleriana Garden annual
• Spike Speedwell Veronica spicata Garden perennial
• Spike Winter Hazel Corylopsis spicata Flowering shrub
• Spinach Spinacia oleracea Leafy
• Spiny Bear's Breeches Acanthus spinosus Garden perennial
• Spotted Beebalm Monarda punctata Wildflower
• Spotted Deadnettle Lamium maculatum Creeping perennial
• Spotted Joe Pye Weed Eutrochium maculatum Wildflower
• Spreading Dogbane Apocynum androsaemifolium Wildflower
• Spreading Stonecrop Sedum divergens Creeping perennial
• Spring Beauty Claytonia virginica Wildflower
• Spring Cinquefoil Potentilla neumanniana Garden perennial
• Spring Snowflake Leucojum vernum Bulb
• Spring Starflower Tristagma uniflorum Bulb
• Sprouts Medicago sativa Legume
• Spuria Iris Iris spuria Garden perennial
• St. Augustine Grass Stenotaphrum secundatum Grass
• St. Catherine's Lace Eriogonum giganteum Flowering shrub
• Staghorn Sumac Rhus typhina
• Stalked Bulbine Bulbine frutescens Creeping perennial
• Standing Cypress Ipomopsis rubra Wildflower
• Star Jasmine Trachelospermum jasminoides Vine
• Star Magnolia Magnolia stellata Flowering shrub
• Star of Persia Allium cristophii Bulb
• Starflower Pincushions Scabiosa stellata Garden annual
• Starry False Solomon's Seal Maianthemum stellatum Creeping perennial
• Statice Limonium sinuatum Garden annual
• Steeplebush Spiraea tomentosa Flowering shrub
• Stemless Gentian Gentiana acaulis Wildflower
• Stevia Stevia rebaudiana Leafy
• Sticky Monkeyflower Diplacus aurantiacus Flowering shrub
• Sticky Purple Geranium Geranium viscosissimum Wildflower
• Stiff Aster Ionactis linariifolius Wildflower
• Stiff Goldenrod Oligoneuron rigidum Wildflower
• Stiff Sunflower Helianthus pauciflorus Wildflower
• Stinking Hellebore Helleborus foetidus Garden perennial
• Stock Matthiola incana Brassica
• Stokes' Aster Stokesia laevis Garden perennial
• Strawberry Fragaria x ananassa Berry
• Strawberry Begonia Saxifraga stolonifera Creeping perennial
• Strawberry Clover Trifolium fragiferum Creeping perennial
• Strawberry Foxglove Digitalis × mertonensis Wildflower
• Strawberry Tree Arbutus unedo Flowering shrub
• Strawflower Bracteantha bracteata Garden annual
• Striped Squill Puschkinia scilloides Bulb
• Subterranean Clover Trifolium subterraneum Legume
• Sugar Maple Acer saccharum Nut