Rodgersia 'Hercules'
Romneya coulteri
Rudbeckia 'Henry Eilers'
Rudbeckia maxima
Salvia 'Amistad'
Salvia 'Dear Anja'
Salvia greggii 'Royal Bumble'
Salvia micr. 'Billiers'
Salvia nem. ' Caradonna '
Salvia nem. 'Amethyst'
Salvia nem. 'Ost Friesland'
Salvia uliginosa
Salvia verticilata 'Purple Rain'
Salvia verticillata 'Hannay's Blue'
Sanguisorba 'Black Thorn'
Sanguisorba 'Lilac Squirrel
Sanguisorba 'Long Tall Red'
Sanguisorba 'Pink Brushes'
Sanguisorba 'Red Thunder'
Sanguisorba 'Tall Raspberry'
Sanguisorba 'Tully'
Sanguisorba hakusanensis
Sanguisorba JSF 1, 2, en 3.
Sanguisorba minor 'Little Angel'
Sanguisorba off. 'Arnhem'
Sanguisorba off. 'Bommel'
Sanguisorba off. 'Dancing Red'
Sanguisorba off. 'Lum'
Sanguisorba off. 'Red Spikes'
Sanguisorba off. 'Tanna'
Sanguisorba ten. 'Alba'
Sanguisorba tenuifolia 'Atropurpurea'
Scabiosa 'Stäfa'
Scabiosa columbaria 'Butterfly Blue'
Scabiosa columbaria 'Pink Mist'
Scutellaria incana
Sedum ' Matrona '
Sedum 'Karfunckel Stein'
Seseli montanum
Sesleria autumnalis
Sidalcea hybr.'Elsie Heugh'
Smilacina racemosa
Solidago rugosa
Sorghastrum 'Indian Steel'
Sorghastrum nutans 'Sioux Blue'
Sporobolus heterolepis
Stachys 'Hummelo'
Stipa gigantea
Stipa tenuissima 'Pony Tails'
Thalictrum 'Anne'
Thalictrum 'Black Stockings'
Thalictrum 'Elin'
Thalictrum 'Hinkley'
Thalictrum 'Perfume Star'
Thalictrum 'Slendide Wit'
Thalictrum 'Ulrike'
Thalictrum blad
Thalictrum del. ' Splendide '
Thalictrum flavum 'Illuminator'
Thalictrum flavum subsp. glaucum
Thalictrum polygamum
Thalictrum rochebrunianum
Uvularia grandiflora