| Sacred Bamboo |
Nandina domestica |
 |
| Saffron Thistle |
Carthamnus tinctoria |
 |
| Sage (many) |
Salvia |
 |
| Sage, Autumn |
Salvia greggii |
|
| Sage, Balkan |
Salvia forsskaolii |
|
| Sage, Blue Vine |
Salvia cacaliifolia |
|
| Sage, Canyon |
Salvia lycoides |
 |
| Sage, Clary |
Salvia turkestanica |
|
| Sage, Clustered |
Salvia dolichantha |
 |
| Sage, Scarlet |
Salvia splendens hybrids |
|
| Sage |
Salvia przewalskii |
|
| Sage |
Salvia x jamensis |
|
| Sainfoin |
Onobrychis viciifolia |
|
| Salad Burnet |
Poterium sanguisorba |
|
| Salsify |
Tragopogon porrifolius |
|
| Sand Camwood |
Baphia massaiensis |
|
| Sandwort (many) |
Arenaria |
|
| Sausage Tree |
Kigelia africana |
|
| Saxifrage (many) |
Saxifraga |
|
| Saxifrage |
Saxifraga apiculata |
|
| Saxifrage |
Saxifraga arendsii |
|
| Saxifrage |
Saxifraga canaliculata |
|
| Saxifrage |
Saxifraga hybrid |
|
| Saxifrage |
Saxifraga stribrnyi |
|
| Scabious, Small |
Scabiosa columbaria (nana) |
|
| Scarborough Lily |
Cyrtanthus elatus (purpureus) |
|
| Scarlet Flax |
Linum grandiflorum v rubrum |
|
| Scarlet Pimpernel |
Anagallis arvensis |
|
| Scarlet Sage |
Salvia splendens hybrids |
|
| Scarlet Wisteria (many) |
Sesbania |
|
| Scentless Mayweed |
Matricaria inodora |
|
| Schiverekia |
Schiverekia monticola |
|
| Scorpion Weed |
Phascelia tanacetifolia |
|
| Screw Pine |
Pandanus utilis |
|
| Sea Bean |
Mucuna albertisii |
|
| Sea Campion |
Silene maritima (uniflora) |
|
| Sea Daffodil |
Pancratium maritimum |
|
| Sea Green |
Coronilla glauca |
|
| Sea Holly |
Eryngium giganteum |
|
| Sea Lavender |
Limonium sinuatum |
|
| Sea Pea |
Lathyrus japonicus maritimus |
|
| Sea Pink (many) |
Armeria |
|
| Sea Pink |
Armeria juniperifolia |
|
| Sea Pink |
Armeria maritima |
|
| Sea Squill |
Urginea maritima |
|
| Seaside Grape |
Coccoloba uvifera |
 |
| Self Heal |
Prunella vulgaris |
|
| Senecio |
Senecio polyodon |
|
| Sensitive Plant |
Mimosa pudica |
|
| Serbian Phoenix Flower |
Ramonda serbica |
|
| Shamrock Pea |
Parochetus communis |
|
| Shasta Daisy, Marguerite |
Leucanthemum superbum |
|
| Sheep's Bit |
Jasione crispa |
|
| Shell Ginger |
Alpinia speciosa |
|
