'Rosy Cushion' Rose 'Rotunda' Chinese Holly
'Rotundifolia' Japanese Holly 'Rotundifolium' Doublefile Viburnum: plicatum
Rough Honey Myrtle Round Leaf Chastetree (spp.)
Round Leaf Chastetree 'Wild Korea' Round Leaf Tea Tree
Round Leaf Vitex (spp.) Round Leaf Vitex 'Wild Korea'
Round-fruited Banksia Roundleaf Buffaloberry
Round-leaf Hawthorn Roundleaf Holly Osmanthus
Rowe Ceanothus 'Gerda Isenberg' Roxburgh Fig
'Royal Cape' Cape Leadwort 'Royal Dwarf' Sheep Laurel
Royal Purple Brunfelsia (spp.) Royal Purple Brunfelsia 'Macrantha'
'Royal Purple' Smoke Tree 'Royalty' Crapemyrtle: indica
'Royalty' Hungarian Lilac 'Royle' Japanese Maple
'Rozalea® Coral Pink' Azalea 'Rozalea® Light Lavender' Azalea
'Rozannie' Aucuba Rubber Euphorbia 'Red Pencil Tree'
'Rubella' Japanese Skimmia 'Rubicon' Rhododendron: hybrid
'Rubidor' Old Fashioned Weigela 'Rubis' Rose of Sharon
'Rubra' Star Magnolia 'Rubriflora' Stachyurus
Rubus (spp.) Rubus 'Emerald Carpet'
Rubus: trifidus 'Ruby Anniversary™' Glossy Abelia
'Ruby' Azalea 'Ruby Clusters' Spider Flower
'Ruby Glow' Garland Daphne 'Ruby Glow' Witchhazel: intermediahybrid
'Ruby Kins' Old Fashioned Weigela 'Ruby Meidiland®' Rose
'Ruby Spice' Summer Sweet 'Ruby Teardrops' Colorado Spruce
'Rudy Haag' Burning Bush Ruellia, Sonoran Desert
Rugose Rose (spp.) Rugose Rose 'Agnes'
Rugose Rose 'Dart's Dash' Rugose Rose 'La Marne'
Rugose Rose 'Magnifica' Rugose Rose 'Red Dagmar'
Rugose Rose White 'Rugosum' Wayfaring Tree
'Ruhn Von Horstenstein' Common Lilac 'Rumba' Old Fashioned Weigela
Russet Buffaloberry Russian Peashrub
'Russian Violet' Rose of Sharon Rusty Black Viburnum (spp.)
Rusty Black Viburnum 'Emerald Charm™' Rusty Blackhaw (spp.)
Rusty Blackhaw 'Emerald Charm™' 'Ryuzu' Japanese Maple
'Sachet' Rose Sachuista
Sacred Bamboo (spp.) Sacred Bamboo 'Harbor Belle™'
Sacred Bamboo 'Moon Bay' Sacred Bamboo 'Richmond'
Sacred Flower of the Incas 'Safari Sunset' Conebush
Saffron Spike 'Sagara nishiki' Japanese Maple
Sage Leaf Rock Rose (spp.) Sage Leaf Rock Rose 'Prostratus'
Sage, Autumn (spp.) Sage, Autumn 'Chiffon'
Sage, Autumn 'Moonlight' Sage, Autumn 'Purple'
Sage, Autumn 'Raspberry Ripple' Sage, Autumn 'Red'
Sage, Autumn 'San Isidro Moon' Sage, Pink
Sage, Purple (spp.) Sage, Purple 'Compactum'
Sage, Texas (spp.) Sage, Texas 'Compactum'
Sage, Yellow (spp.) Sage, Yellow 'Banana Split'
Sage, Yellow 'Bante Rossa' Sage, Yellow 'Landmark™ Rose Glow'
Sage, Yellow 'Lemon Swirl' Sage, Yellow 'Luscious® Citrus Blend'
Sage, Yellow 'Luscious® Grape' Sage, Yellow 'Luscious® Lemonade'
Sage, Yellow 'Miss Huff' Sage, Yellow 'New Gold'
Sage, Yellow 'Pink Caprice' Sage, Yellow 'Popsicles'
Sage, Yellow 'Radiance' Sage, Yellow 'Radiation'
Sage, Yellow 'Samantha' Sage, Yellow 'Silver Mound'
Sage, Yellow 'South Beach™ Purple Sky' Sage, Yellow 'Spreading Sunset'
Sage, Yellow 'Tropical Fruit' Sage: candidum
Sage: greggii, Texas (spp.) Sage: greggii, Texas 'Chiffon'
Sage: greggii, Texas 'Moonlight' Sage: greggii, Texas 'Purple'
Sage: greggii, Texas 'Raspberry Ripple' Sage: greggii, Texas 'Red'
Sage: greggii, Texas 'San Isidro Moon' Sage: pruinosa
Sage: zygophyllum Sagebrush, California (spp.)
Sagebrush, California 'Canyon Gray' Sagebrush, Coastal (spp.)
Sagebrush, Coastal 'Canyon Gray' Sagebrush, Great Basin
Sagebrush, Trailing (spp.) Sagebrush, Trailing 'Canyon Gray'