Sundowner Flax
Sunflower
Sunrose
Sunset Manzanita
Superstition Bearded Iris
Sweet Alyssum
Sweet Bay
Sweet Flag
Sweet Gum
Sweet Hakea
Sweet Musette Bearded Iris
Sweet Olive, Tea Olive
Sweet Pea
Sweet Pea Shrub
Sweet William
Sweet Woodruff
Swiss Mountain Pine
Tanbark Oak
Tanyosho Pine