Sulfur Flower
Summer Lobelia
Sun Singer Bearded Iris
Sunburst Hypericum
Sunburst Locust
Sunburst Trailing Gazania
Sundowner Flax
Sunray Coreopsis
Sunrose
Sunset Manzanita
Sunset Rockrose
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