Summer flowering perennials

Salvia officinalis 'Kew Gold'

Common sage, Kitchen sage, Garden sage

Salvia officinalis 'Purpurascens Variegata'

Variegated purple sage, Common sage, Kitchen sage, Garden sage

Salvia pratensis

Meadow clary, Meadow sage

Salvia splendens 'Blaze of Fire'

Scarlet sage, Sage

Salvia splendens 'Red Arrow'

Scarlet sage

Salvia splendens 'Salsa Light Purple'

Scarlet sage

Salvia splendens 'Sizzler Red'

Scarlet sage

Salvia splendens 'Vista White'

Scarlet sage, Sage

Salvia uliginosa

Bog sage, Marsh sage

Sarracenia flava

Yellow trumpet, Yellow pitcher plant, Pitcher plant, Huntsman's horn, Side saddle flower

Saxifraga 'Clarence Elliott'

Elliot's saxifrage

Saxifraga fortunei 'Rubrifolia Nana'

Autumn saxifrage

Scabiosa 'Blackberry Fool'

Scabious

Scabiosa 'Fama Blue'

Pincushion flower, Scabious, Mourning bride

Scabiosa atropurpurea 'Ace of Spades'

Mournful widow, Sweet scabious, Egyptian rose

Scabiosa caucasica 'Blausiegel'

Caucasian scabious, Pincushion flower

Scutellaria lateriflora

Mad dog skullcap, Madweed, Virginian skullcap

Sedum 'Birthday Party'

Stonecrop

Sedum 'Class Act'

Stonecrop

Sedum Herbstfreude Group 'Elsie's Gold'

Elsie's Gold stonecrop

Senecio cineraria

Silver cineraria, Sea ragwort, Silver groundsel

Sidalcea 'Loveliness'

Prairie mallow, Checker mallow, False mallow

Sidalcea 'Mrs T. Alderson'

Prairie mallow, Checker mallow, False mallow

Sidalcea candida

White prairie mallow

Silene dioica 'Minikin'

Red Campion, Morning campion

Sinopodophyllum hexandrum 'Nanum'

Indian mandrake, Himalayan May apple

Solidago 'Leraft'

Golden rod

Stachys byzantina 'Silky Fleece'

Lambs tongue, Lambs tails, Woolly ears

Stachys macrantha

Big betony, Big sage

Stachys officinalis 'Wisley White'

Bishop's wort, Betony

Stokesia laevis

Stoke's aster, Jasper blue stokesia

Tanacetum coccineum 'Eileen May Robinson'

Pyrethrum, Painted daisy, Persian insect flower

Tanacetum coccineum 'James Kelway'

Pyrethrum, Painted daisy, Persian insect flower

Tanacetum coccineum 'Robinson's red-flowered'

Pyrethrum, Painted daisy, Persian insect flower

Tanacetum poteriifolium

Feverfew

Tellima grandiflora 'Delphine'

Alaska fringecup

Tellima grandiflora Odorata Group

Alaska fringecup

Thalictrum aquilegiifolium 'Thundercloud'

Yellow maidenhair, Columbine meadow rue, Common meadow rue

Thunbergia alata

Black-eyed Susan, Clock vine

Thunbergia alata 'Sunny Lemon Star'

Black-eyed Susan, Clock vine

Thunbergia alata 'Sunny Pink Beauty'

Black-eyed Susan, Clock vine

Thunbergia alata 'Sunny Susie Brownie'

Black-eyed Susan, Clock vine

Thymus citriodorus (ambig.)

Lemon thyme

Tiarella 'Neon Lights'

Heartleaf foamflower

Tiarella 'Pink Bouquet'

Heartleaf foamflower

Tiarella polyphylla

Asian foamflower

Tiarella wherryi 'Green Velvet'

False mitrewort, Wherry's tiarella, Mapleleaf tiarella

Tigridia pavonia

Peacock flower, Tiger flower, Flower of tigris, Mexican shell flower