Spanish Lavender
Sparaxis, Harlequin Flower
Spathe Leaved Sedum
Spear Lily
Spice Bush
Spider Flower
Spike Gayfeather
Spineless Yucca
Split Leaf or Selloum Philodendron
Spreading Acacia
Spreading English Yew
Sprenger Asparagus
Squirrel's Foot Fern
St. Catherine's Lace
Stalked Aeonium
Star Jasmine, Confederate Jasmine
Star Magnolia
Sticky Monkey Flower
Stock
Stonecrop