All Plants: Rigi - Robu (61)

Rigid Dwarf Hinoki False Cypress Rigid Twinspur Rigidella Rigoletto Dahlia Rikki Dracaena: deremensis Rikki Pikki Japanese Iris Rimu Ring Cupped Oak Ring of Fire Alumroot: Heuchera Ring of Fire Common Sunflower Ringlets Daylily Rio Grande Copper Lily Rio Grande Rose Mallow Rio Samba Rose Rio Zonal Geranium Rising Sun Maple Rita Marie Green Allamanda Ritz Rocket Amaranth: hybrid Rivendell Florist's Chrysanthemum River Birch (spp.) River Birch Summer Cascade River Birch: nigra minor River Hawk Tall Bearded German Iris River Jam River Maple (spp.) River Maple Beebe River Maple Bon's Dwarf River Maple Pyramidale River Maple Silver Queen River Maple Skinneri River Maple Wieri River Oats River Red Eucalyptus River Red Gum Rivereorum Chinese Goddess Bamboo Riversii European Beech Robb's Spurge Robby Robella English Daisy Robert Culpepper Japanese Holly Robert Frost Hosta Robert Poore Garden Phlox Robert Purple Loosestrife Robin (Songbird Series)(n) Columbine Robin Hill Apple Serviceberry Robin, Ragged Robineau Gladiolus Robinson Flowering Crabapple Robinson Hybrids Painted Daisy Robinson's Mix Painted Daisy Robinson's Red Painted Daisy Roble Beech Roble Guayo Robust Acacia Robust Marsh Orchid Robusta Early Forsythia Robusta Green Chinese Juniper Robusta Hedge Nettle Robusta Hosta: fortunei Robusta Woundwort Robustissima Hardy Grape Leaf Anemone