Rheum rhabarbarum
Rhubarb
Photo: Dieter Weber (User:Uellue) · CC BY-SA 3.0 · Source
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Description
Rhubarb is a perennial herb that produces vigorous, tart stalks each spring from its thick rhizome. The stalks are used in compotes, pies, and preserves; only the leaves remain in the compost due to their high oxalic acid content. Once planted, a single plant can produce for many years and requires ample space and nutrients.
Care instructions
Plant the rhizomes in autumn or early spring in a sunny, deep, humus-rich spot, giving each plant about one square meter of space. In spring, fertilize with mature compost and water generously during dry periods. Harvest the stalks by twisting them out, stopping at the end of June (week 26), and leave at least one‑third of the stalks standing to allow the plant to recover.
Companion planting
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