Rheum rhabarbarum Plant Data Family Name: Polygonaceae Common Name: rhubarb Other Name(s): Rheum rhabarbarum Hardiness Zones: Zone 2: (-46 to -40 C) Plant Code: rhrh Leaf Form: Simple, Leaf Arrangement: Basal, Leaf Shape: Ovate, PlantSomething BC Garden Centre Listings No members have selected this plant.