Rosenka Bougainvillea
Royal Beard Tongue
Royal Purple Smokebush
Royal Trumpet Vine, River's Trumpet
Rozanne Cranesbil
Ruby Flower Red Horsechestnut
Ruby Glow Manuka
Ruby King Penstemon
Sage
Sageleaf Rockrose
Salal, Lemon Leaves
Sandankwa Viburnum
Sandhill Sage, Coast Sagebrush
Sansanqua or Sun Camellia
Santa Ana Cardinal Coral Bells
Santa Barbara Daisy
Santa Barbara Daisy, Mexican Daisy
Santa Cruz Island Buckwheat, Wild B
Santa Cruz Pyracantha
Saratoga Sweet Bay