Scientific Name: Rheum rhabarbarum (incl. hybrid cvs.)
Common Name: rhubarb
Family Name: Polygonaceae
Origin: Garden origin, South Asia / India
Hardiness Zone: Zone 3: (-40 to -34 °C)
Plant Type: Herbaceous perennial
Mature Size: 0.7 - 1.3m x 1.0 - 1.5m (height x width)
Habit: Arching
Form: Vase
Texture: Very coarse
Landscape Uses: Urban agriculture
Exposure: Full sun
Soil or Media: Humus rich
Leaves: Simple, Basal, Leathery, Pubescent, Ovate, Entire, Undulate (wavy)
Flowers: Cyme, White, Red, Jun-Jul
Fruit: Achene, Brown, Aug-Sep
Key ID Features:
Leaves basal, ovate, most 20-60cm long x 25-50cm wide, base cordate, petioles edible, 30-90cm long, thick, red, and arise from short, thick rhizomes.