Spanish Iris
Spanish Lavender
Sparaxis, Harlequin Flower
Sparkler Freeway Daisy
Spathe Leaved Sedum
Spear Lily
Species Rose
Spice Bush
Spider Flower
Spike Gayfeather, Blazing Star
Spineless Yucca
Spiny Rush
Spreading Acacia
Spreading English Yew
Spreading Snowberry
Spreading Willowleaf Cotoneaster
Sprenger Asparagus
Spring Bouquet Viburnum
Squirrel's Foot Fern
St. Catherine's Lace