Rheum rhabarbarum
Rhubarb
Common names: Common rhubarb
Photo: Dieter Weber (User:Uellue) · CC BY-SA 3.0 · Source
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Description
Rhubarb is a perennial herb that each spring produces vigorous, tart stalks from its thick rhizome. The stalks are used in compotes, cakes, and preserves; only the leaves remain in the compost because of their high oxalic acid content. Once planted, a plant can live for many years and requires only ample space and nutrients.
Care instructions
Plant the rhizomes in autumn or early spring in a sunny, deep, humus-rich spot and give 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, stop harvesting at the end of June (week 26), and leave at least one third of the stalks standing so the plant can recover.
Soil & site
Soil pH
Soil type
loamy, humus-rich, well-drained, nutrient-rich, moist
Feeding
Heavy feeder
Months
Mar, Apr, Jun
Propagation
Methods
- Division
- From seed
Companion planting
Good neighbors
Companion planting is partly traditional gardening lore. Where the reason is known, it is given.
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