Common pasture weed with deep taproot and broad leaves. Traditional folk remedy for nettle stings — rub the leaves on the skin — and a useful biomass plant for compost heaps.
Hardiness ratings
| System | Rating | Temperature range | How to read it |
|---|---|---|---|
| USDA hardiness zone | Zone 3–9 | −40 °C to −1.1 °C | Plant tolerates down to this zone |
| RHS hardiness rating | H7 | down to −20 °C | Plant needs at least this level of cold tolerance |
| Canadian plant hardiness zone | Zone 3–9 | −34 °C and warmer | Plant tolerates down to this zone |
| Australian (ANBG) zone | Zone 1–5 | −15 °C to 10 °C | Plant tolerates down to this zone |
Growing notes
- Dynamic accumulator — iron and calcium, drawn from deep subsoil via the taproot
- Young leaves are edible but contain high oxalic acid — eat in moderation and not at all if prone to kidney stones
- Considered a weed in agricultural settings but valuable in composting systems
- Always consult a qualified medical or herbal practitioner before using any plant medicinally
Categories
Related plants
Cross-check Dock — Broad-leaved against your zones