Plant Growing Guides

Red-twig Dogwood

Cornus sericea

Redtwig Dogwood

Cornus alba

Red-twig Serviceberry

Amelanchier sanguinea

Red Vein Sorrel

Rumex sanguineus

Red-veined Sorrel

Rumex sanguineus

Red Water Lily

Nymphaea rubra

Red Willow

Salix laevigata or Salix alba subsp. vitellina (varies by region)

Red Wings Phlox

Phlox paniculata 'Red Wings'

Red Zinnia Scarlet Splendor

Zinnia elegans

Reed

Phragmites australis

Reed Canary Grass

Phalaris arundinacea

Regal Splendor Hosta

Hosta 'Regal Splendor'

Regatta Midnight Blue Lobelia

Lobelia erinus 'Regatta Midnight Blue'

Reindeer Moss

Cladonia rangiferina

Reine des Glaces

Lactuca sativa var. crispa

Rembrandt Tulip

Tulipa 'Rembrandt'

Repanda

Sempervivum repanda

Rescue Grass

Bromus catharticus

Rescuegrass

Bromus catharticus

Restharrow

Ononis repens

Reticulata Iris Harmony

Iris reticulata 'Harmony'

Reticulated Iris

Iris reticulata

Rheingold Arborvitae

Thuja occidentalis 'Rheingold'

Rhexia

Rhexia virginica

Rhododendron

Rhododendron spp.

Azalea Autumn Flame

Rhododendron 'Autumn Flame'

Azalea Nova Zembla

Rhododendron 'Nova Zembla'

Rhododendron and Azalea PJM

Rhododendron 'PJM'

Azalea Ramapo

Rhododendron 'Ramapo'

Azalea 'Roseum Elegans'

Rhododendron 'Roseum Elegans'

Azalea Sapporo

Rhododendron 'Sapporo'

Piedmont Rhododendron

Rhododendron minus

Rhododendron Nova Zembla

Rhododendron 'Nova Zembla'

Rhododendron P.J.M.

Rhododendron catawbiense var. P.J.M.

Rhododendron Purple Gem

Rhododendron catawbiense 'Purple Gem'

Ramapo Rhododendron

Rhododendron catawbiense 'Ramapo'

Rhododendron and Azalea

Rhododendron spp.

Rhododendron yakushimanum hybrid

Rhododendron yakushimanum × [various cultivars]

Rhubarb

Rheum rhabarbarum

Rhubarb Chard

Beta vulgaris subsp. vulgaris

Rhubarb Chipman Red

Rheum rhabarbarum 'Chipman Red'

Rhubarb Crimson Red

Rheum rhabarbarum 'Crimson Red'

Rhubarb 'Crimson Red'

Rheum rhabarbarum 'Crimson Red'

Rhubarb 'Crimson Red' / 'MacDonald'

Rheum rhabarbarum

Rhubarb 'Crimson Red Strawberry Surprise'

Rheum rhabarbarum 'Crimson Red Strawberry Surprise'

Rhubarb Glaskin's Perpetual

Rheum rhabarbarum 'Glaskin's Perpetual'

Rhubarb Timperley Early

Rheum rhabarbarum

Rhubarb Victoria

Rheum rhabarbarum 'Victoria'