Summer Lobelia
Sun Singer Dutch Iris
Sunburst Hypericum
Sunburst Locust
Sunburst Trailing Gazania
Sundowner Flax
Sunray Coreopsis
Sunrose
Sunset Manzanita
Swan Hill Fruitless Olive
Sweet Alyssum
Sweet Bay, Bay Leaf, Grecian Laurel
Sweet Flag
Sweet Gum
Sweet Hakea
Sweet Musette Bearded Iris
Sweet Olive, Tea Olive
Sweet Orange cultivars
Sweet Pea
Sweet Violet, English Violet