Rheum rhabarbarum

Rheum rhabarbarum, called garden rhubarb in Dutch, is a deciduous perennial with a pol-forming habit and large shallow-lobed, hand-veined dark green leaves on sturdy red edible stems. Garden rhubarb flowers from May to July with creamy white panicles on tall stems. Rheum rhabarbarum prefers a position in partial shade or sun in an acidic to neutral, well fertile, humus-rich and moisture-retaining soil. The plant is hardy, moderately drought tolerant, pest free and good air pollution tolerant. In unfavorable conditions and too wet winters, this rhubarb can suffer from crown rot.