Rheum palmatum

Rheums should be planted 6 feet (1.8 m) apart in full sun and moist soil enriched with manure, and must not dry out. But neither must the crowns be so wet as to rot in winter. Some gardeners plant them on little mounds of soil to promote good drainage.

Rheums look rather tatty after flowering, and something equally dramatic should be waiting in the wings for late summer, a great opportunity for a group or two of crimson dahlias.

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