'Quick Fire®' Panicle Hydrangea 'Quicksilver' Hebe
Quillay 'Quilled Petals Mix' Black-eyed Susan
'Quills' Sweet Coneflower Quince
Quince, Chinese (spp.) Quince, Chinese 'Chobui'
Quince, Chinese 'Contorta' Quince, Chinese 'Fire Dance'
Quince, Chinese 'Jet Trail' Quince, Chinese 'Sargentii'
Quince, Chinese 'Scarff's Red' Quince, Chinese 'Texas Scarlet'
Quince, Flowering (spp.) Quince, Flowering 'Chobui'
Quince, Flowering 'Contorta' Quince, Flowering 'Fire Dance'
Quince, Flowering 'Jet Trail' Quince, Flowering 'Sargentii'
Quince, Flowering 'Scarff's Red' Quince, Flowering 'Texas Scarlet'
Quince, Japanese Flowering Quince: cathayensis, Flowering
Quince: sinensis, Chinese Quince: superbahybrid, Flowering 'Cameo'
Quinine Tree Quiver Tree
'R. J. Cabot' Rose 'R.L. Wheeler' Japanese Camellia
Rabassam Rabbit Bush
Rabbit Tail Grass Rabbit Tracks (spp.)
Rabbit Tracks 'Herringbone Plant' Rabbitbrush, Black Banded
Rabbit's Foot Rabbit's Foot Fern
'Rachels Gold' Garden Sage Radermachera
'Radiance' Lantana 'Radiant Edger' Hosta
'Radiant' Manzanita 'Radiata' Eastern White Pine
'Radiation' Lantana Radicchio (spp.)
Radicchio 'Marina' 'Radtko (Double Knock Out®)' Rose
Raffia Palm Ragged Orchid
Raggedy Anne Copper Plant 'Ragin Cajin' Red Ruellia
Ragweed, Annual Ragweed, Giant
Ragweed, Great Ragwort (spp.)
Ragwort 'Desdemona' Ragwort 'Othello'
Ragwort, Monro's Railroad Vine
Rain Lily Rain Lily: candida
Rain of Gold 'Rainbow' Drooping Agarista
'Rainbow' Flowering Dogwood Rainbow Plant (spp.)
Rainbow Plant 'Chameleon' 'Rainbow River' Flax
Rainbow Rockcress (spp.) Rainbow Rockcress 'Snow Cap'
Rainbow Rockcress 'Whitewell Gem' Rainbow Shower Tree
'Rainbow Sunrise (Maori Queen)' New Zealand Flax 'Rainbows End' White Spruce
'Rainforest' Orchid Raisin Tree, Japanese
'Ralf' English Ivy Ralph's Desertwillow
'Ramie' Ramie Ramie (spp.)
Ramie 'Ramie' 'Ramona' Hybrid Clematis
Ram's Horn 'Rana' Guzmania
Rancheria Grass (spp.) Rancheria Grass Blue
'Rancho' Littleleaf Linden Randramboay
Rangoon Creeper 'Ranululiflorus Plenus' Rose of Sharon
Raoulia Raoulia 'Greenstone'
Raoulia: haastii Rapanea
'Rara Flora Fluke' Oriental Spruce 'Rare Treat' Tall Bearded German Iris