Romneya coulteri Rosa
Rosa banksiae Rosmarinus officinalis
Rosmarinus officinalis 'Lockwood De Forest' Rosmarinus officinalis 'Majorca Pink'
Rosmarinus officinalis 'Mozart' Rosmarinus officinalis 'Prostratus'
Rudbeckia hirta Rudbeckia hirta 'Autumn Colors'
Rudbeckia hirta 'Autumn Forest' Rudbeckia hirta 'Becky'
Rudbeckia hirta 'Cherokee Sunset' Rudbeckia hirta 'Chim Chiminee'
Rudbeckia hirta 'Cordoba' Rudbeckia hirta 'Double Gold'
Rudbeckia hirta 'Indian Summer' Rudbeckia hirta 'Irish Eyes'
Rudbeckia hirta 'Marmalade' Rudbeckia hirta 'Quilled Petals Mix'
Rudbeckia hirta 'Sonora' Rudbeckia hirta 'Spotlight'
Rudbeckia hirta 'Summer Light' Rudbeckia hirta 'TotoŽ'
Rudbeckia hirta 'TotoŽ Rustic' Ruellia peninsularis
Ruellia tweediana Ruellia tweediana 'Chi Chi'
Ruellia tweediana 'Katie Pink' Ruellia tweediana 'Purple Showers'
Russelia equisetiformis Salvia 'Allen Chickering'
Salvia apiana Salvia clevelandii
Salvia leucantha Sambucus caerulea
Santolina chamaecyparissus Santolina chamaecyparissus 'Nana'
Santolina rosmarinifolia Scaevola 'Mauve Clusters'
Sedum album Sedum album 'Murale'
Sedum morganianum Sedum pachyclados
Sedum reflexum 'Angelina' Sedum rubrotinctum
Sedum spathulifolium Sedum spathulifolium 'Cape Blanco'
Sedum spathulifolium 'Purpureum' Sedum spurium
Sedum spurium 'Bronze Carpet' Sedum spurium 'Elizabeth'
Sedum spurium 'Fuldaglut' Sedum spurium 'John Creech'
Sedum spurium 'Schorbuser Blut(Dragon's Blood)' Sedum spurium 'Splendens'
Sedum spurium 'Tricolor' Sedum spurium 'Variegatum'
Sedum ternatum Sedum ternatum 'Shale Barrnes'
Sempervivum Sempervivum 'Purple Beauty'
Senecio cineraria Senecio cineraria 'Cirrus'
Senecio cineraria 'New Look' Senecio cineraria 'Silver Lace'
Senecio cineraria 'Silverdust' Senecio cineraria 'Snowstorm'
Senecio mandraliscae Setaria palmifolia
Setaria palmifolia 'Rubra Variegata' Sidalcea malviflora 'Elsie Heugh'
Simmondsia chinensis Sisyrinchium bellum
Sisyrinchium californicum Solanum jasminoides
Sollya heterophylla 'Boddys Choice' Sophora secundiflora
Sphaeralcea ambigua Spiraea japonica 'Anthony Waterer'
Sporobolus lindheimeri Stachys byzantina
Stachys byzantina 'Big Ears' Stachys byzantina 'Helen von Stein'
Stachys byzantina 'Silver Carpet' Stenotaphrum secundatum 'Variegatum'
Stipa gigantea Stipa tenuissima
Strelitzia reginae Syringa vulgaris
Tagetes lemmonii Tagetes lucida
Taxodium mucronatum Tecoma stans
Tecomaria capensis 'Apricot' Tecomaria capensis 'Aurea'
Tecomaria capensis 'Coccinea' Teucrium chamaedrys 'Prostratus'
Teucrium fruticans Thevetia peruviana