Rheum officinale - Rhubarb
This species of Chinese origin, with very powerful medicinal properties, produces hollow green petioles ending in a broad green leaf. Roots and rhizomes are used for their laxative qualities.
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Spring: sow in April/May, a few seeds per bucket, in a cold greenhouse or under a frame. Thin out, leaving just one plant per bucket, and transplant to a nursery at the 4 or 5-leaf stage. Set out in the garden in autumn or the following spring. In autumn: sow a few seeds 30 cm apart in all directions in August/September in a well-exposed nursery. Set out in spring, 1 m apart. Multiplication by root division takes place in April or September on already vigorous plants.
Rheum officinale
3 grams
From 100 to 200 cm
China