Sesleria autumnalis

Sesleria caerulea

Sidalcea candida

Silene alpestris 'Starry Dreams'

Silene maritima

Solidago 'Goldkind'

Solidago 'Goldkind'

Sporobolus heterolepis

Stachys byzantina

Stachys byzantina

Stachys byzantina 'Big Ears'

Stachys byzantina 'Big Ears'

Stachys byzantina 'Silver Carpet'

Stachys grandiflora 'Superba'

Stachys officinalis

Stachys officinalis 'Ukkie'

Stipa tenuissima 'Ponytails'

Stipa tenuissima 'Ponytails'

Stokesia laevis

Symphytum grandiflorum

Symphytum grandiflorum

Symphytum grandiflorum 'Wisley Blue'

Symphytum officinale

Tanacetum 'Robinson's Red'