Salvia nemorosa 'Caradonna'

Salvia nemorosa 'Lyrical White'

Salvia nemorosa 'Marcus'

Salvia x sylvestris 'May Night'

Sanguisorba 'Little Angel'

Sanguisorbia menziezii

Santolina incana 'Nana'

Santolina virens 'Lemon Fizz'

Sedum 'Lime Zinger'

Sedum album 'Coral Carpet'

Solidago 'Dansolitlem' (Little Lemon Goldenrod)

Syringa vulgaris 'New Age Lavender'

Tanacetum coccineum 'Robinson's Giant Crimson'

Thalictrum aquilegifolium 'Black Stockings'

Thalictrum aquilegifolium 'Nimbus Pink'

Thalictrum aquilegifolium 'Nimbus White'

Thymus vulgaris 'Silver Posie'

Trollius chinensis 'Golden Queen'

Verbascum 'Dark Eyes'

Verbascum 'Plum Smokey'

Veronica 'Georgia Blue'

Veronica 'Purpleicious'

Veronica 'Tidal Pool'

Veronica liwanensis (Turkish Speedwell)