Sempervivum arachnoideum

Sesleria autumnalis

Sesleria caerulea

Silene maritima

Silene schafta

Solidago 'Goldkind'

Sporobolus heterolepis

Stachys byzantina 'Big Ears'

Stachys byzantina 'Big Ears'

Stipa ichu

Stipa tenuissima 'Ponytails'

Stokesia laevis

Tanacetum 'Robinson's Red'

Tanacetum 'Robinson's Rose'

Tellima grandiflora

Tellima grandiflora

Thalictrum aquilegiifolium

Thalictrum aquilegiifolium 'Thundercloud'

Thalictrum delavayi 'Album'

Thymus 'Doone Valley'

Thymus 'Rasta'

Thymus praecox 'Albiflorus'

Thymus vulgaris

Tiarella wherryi