Curled dock is a perennial weed-like herb with wavy-edged leaves from a basal rosette and a large yellow taproot, native to temperate Eurasia and widespread elsewhere. It spreads readily by seed, so it is usually managed as a weed rather than grown on purpose.
Family
Polygonaceae (Buckwheat family)
Grows as
Perennial
Light
Full sun, Part shade
Water
Water when the top of the soil dries; tolerates a wide range of moisture.
Soil
Almost any soil, including poor, compacted or disturbed ground.
Temperature
Hardy in temperate climates; tolerates cold winters.
How easy
Easy
Safety
Mildly toxic: Leaves and roots contain oxalic acid, which can irritate the urinary tract and raise the risk of kidney stones if eaten in large amounts.. Toxic to cats and dogs (ASPCA).
Edible
Yes, some parts
Native range
Macaronesia, N. Africa, Temp. Eurasia
Climate
temperate
About
Rumex crispus, the curly dock, curled dock or yellow dock, is a perennial flowering plant in the family Polygonaceae, native to Europe and Western Asia.
Where it grows
Native across temperate Eurasia, and widespread as an introduced species in North America and other temperate regions.
Uses
It can be used as a wild leaf vegetable; the young leaves should be boiled in several changes of water to remove as much of the oxalic acid in the leaves as possible or can be added directly to salads in moderate amounts. Once the plant matures it becomes too bitter to consume. Dock leaves are an excellent source of both vitamin A and vitamin C, as well as a source of iron and potassium. Curly dock leaves are somewhat tart due to the presence of high levels of oxalic acid, and although quite palatable, this plant should only be consumed in moderation as it can irritate the urinary tract and increase the risk of developing kidney stones. It should be used with care during lactation, as it may cause a laxative effect in the infant.
Text excerpted from the Wikipedia article Rumex crispus by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.