Rock Anise Hyssop 'Rock' Florist's Chrysanthemum
Rock Garden Pink (spp.) Rock Garden Pink 'Bath's Pink'
Rock Garden Pink 'Dottie' Rock Garden Pink 'Mountain Mist'
Rock Garden Pink 'Pixie' Rock Garden Pink 'Spotty'
Rock Garden Pink 'Tiny Rubies' Rock Geranium (spp.)
Rock Geranium 'Ruby Veil' Rock Grevillea
Rock Isotome Rock Jasmine
Rock Maple (spp.) Rock Maple 'Ann Rutledge'
Rock Maple 'Arrowhead' Rock Maple 'Celebration'
Rock Maple 'Coleman' Rock Maple 'Commemoration'
Rock Maple 'Eagle Claw' Rock Maple 'Endowment'
Rock Maple 'Fairview' Rock Maple 'Globosum'
Rock Maple 'Goldspire' Rock Maple 'Legacy'
Rock Maple 'Newton Sentry' Rock Maple 'Seneca Chief'
Rock Maple 'Skybound' Rock Maple 'Sweet Shadow'
Rock Maple 'Temple's Upright' Rock Palm (spp.)
Rock Palm 'Elegans' Rock Purslane: umbellata
Rock Rose Rock Rose (spp.)
Rock Rose 'Buttercup' Rock Rose 'Cerise Queen'
Rock Rose 'Goldie Lock' Rock Rose, Grampians
Rock Rose, Gum Rock Rose, Hybrid (spp.)
Rock Rose, Hybrid 'Grayswood Pink' Rock Rose, Orchid
Rock Rose, Sage Leaf (spp.) Rock Rose, Sage Leaf 'Prostratus'
Rock Rose, Sidney Rock Rose, Spotted
Rock Rose, White Rock Rose, Wooly
Rock Rose: Helianthemum 'Razzle Dazzle' Rock Rose: nummularium obscurum
Rock Soapwort Rock Spiraea
Rock Stonecrop 'Rockanje' White Willow
Rockberry Rockcress (spp.)
Rockcress 'Skyrocket' Rockcress, False (spp.)
Rockcress, False 'Snow Cap' Rockcress, False 'Whitewell Gem'
Rockcress, Fringed 'Spring Charm' Rockcress, Mountain Rock (spp.)
Rockcress, Mountain Rock Variegated Rockcress, Purple (spp.)
Rockcress, Purple 'Snow Cap' Rockcress, Purple 'Whitewell Gem'
Rockcress, Rainbow (spp.) Rockcress, Rainbow 'Snow Cap'
Rockcress, Rainbow 'Whitewell Gem' Rockcress, Wall (spp.)
Rockcress, Wall Variegated Rockcress: ferdinandi-coburgi 'Old Gold'
Rockcress: libanotica 'Rockery Gem' Chinese Juniper
'Rocket City' Daylily Rocket Larkspur
Rocket Pincushion (spp.) Rocket Pincushion 'Shooting Rocket'
Rockfoil Rockgarden Iris
Rockingham Podocarp Rockrose
Rockspray Cotoneaster (spp.) Rockspray 'Emerald Spray'
Rocky Mountain Columbine (spp.) Rocky Mountain Columbine 'Red Hobbit'
Rocky Mountain Fir 'Compacta' Rocky Mountain Juniper (spp.)
Rocky Mountain Juniper 'Chandler's Blue' Rocky Mountain Juniper 'Gray Gleam'
Rocky Mountain Juniper 'Holmes Silver' Rocky Mountain Juniper 'Horizontalis'
Rocky Mountain Juniper 'Medora' Rocky Mountain Juniper 'Minima'
Rocky Mountain Juniper 'Moonglow' Rocky Mountain Juniper 'Moonlight'
Rocky Mountain Juniper 'Pathfinder' Rocky Mountain Juniper 'Platinum'
Rocky Mountain Juniper 'Rependens' Rocky Mountain Juniper 'Repens'
Rocky Mountain Juniper 'Silver King' Rocky Mountain Juniper 'Skyrocket'
Rocky Mountain Juniper 'Tolleson's Green Weeping' Rocky Mountain Juniper Weeping
Rocky Mountain Juniper 'Wichita Blue' Rocky Mountain Maple
Rocky Mountain Penstemon Rocky Mountain Pinyon
Rocky Mountain Pinyon Pine Rocky Mountain Sage
Rocky Mountain Scrub Oak Rocky Mountain White Oak
Rocky Mountain White Pine (spp.) Rocky Mountain White Pine Blue
Rocky Mountain Zinnia Rocky Point Ice Plant
Rocky Point Ice Plant: lutea 'Rocky Point' Western Blue-eyed Grass
'Rocky Top Hybrids' Tennessee Coneflower