🌿 Nettle (Stinging Nettle) Urtica dioica
This is a guide, not a substitute for expert identification. Foraging guides - including this one - can contain errors. If you are not completely certain of an identification, do not eat it. Cross-check against at least two independent sources, and when in doubt, consult a local foraging expert or an experienced forager in person before eating anything wild.
The common stinging nettle, a ubiquitous UK wild plant whose young tops make an excellent free spinach substitute for soup once cooked, which fully neutralises the sting.
Identification
An upright perennial growing 30cm-1.5m+ on a square (four-angled) stem. Leaves are elongated heart-shaped, with a broad base tapering to a pointed tip and a heavily serrated (toothed) margin, arranged in opposite pairs up the stem; pale green when young, darkening through the season. Both stem and leaves are covered in fine hollow hairs that deliver the sting on contact. Flowers, produced June-September, are small, inconspicuous and greenish-yellow, hanging in loose catkin-like clusters - male and female flowers occur on separate plants (dioecious, hence 'dioica'). Found almost everywhere in the UK on nutrient-rich, disturbed or moist ground.
⚠️ Dangerous look-alikes - read this before picking anything
No toxic look-alike of real concern was found in UK foraging references - nettle's square stem, opposite serrated leaves and stinging hairs are distinctive. (White dead-nettle, Lamium album, is sometimes mentioned as a visual mimic that lacks the sting and is itself non-toxic and edible, so confusion carries no safety risk either way.) The only genuine hazard with nettle is the sting itself, caused by formic acid together with histamine, acetylcholine and serotonin delivered by the fine hollow hairs on contact - verified across chemistry and wildlife sources. This is a contact irritant, not an ingestion toxin: cooking (steaming, boiling, blanching) or thoroughly drying the leaves breaks down the stinging hairs and neutralises the sting completely, which is why nettle soup, tea and cooked greens are safe even though raw nettle stings on touch. Only pick young leaves/tops (spring growth or the top few leaves of older plants) for eating, wearing gloves to harvest, and never eat raw. On the folk remedy: the traditional practice of rubbing a crushed dock leaf on a nettle sting is not supported by evidence - dock sap is acidic (not alkaline, so it cannot 'neutralise' the sting chemically), no antihistamine compound has been identified in dock leaf, and a 2024 UK trial (the NUTS trial) found no benefit beyond water; any relief is most likely placebo/cooling/rubbing effect rather than a real chemical antidote.
UK habitat
Extremely common and widespread throughout the UK - woodland edges, hedgerows, meadows, riverbanks, gardens and any nutrient-rich disturbed ground.
Legal notes
Picking nettle tops/leaves for personal cooking use is covered by Theft Act 1968 s4(3) - foliage from a wild plant, non-commercial, is not theft. Don't uproot the plant without landowner permission (Wildlife and Countryside Act 1981 s13). Urtica dioica is not on WCA 1981 Schedule 8 and is not scarce - one of the UK's most abundant wild plants. See the full UK foraging law guide for the general rules.
Spots where Nettle (Stinging Nettle) is likely
- Wildlife Trusts - Stinging nettle
- Wild Foodie UK - Stinging Nettle: Eating, Identification & Cooking
- Compound Interest - The Chemistry of Stinging Nettles
- BBC Wildlife / Discover Wildlife - Do dock leaves really soothe nettle stings?
- The Naked Scientists - Do Dock leaves stop stinging nettle stings?
- Totally Wild UK - Stinging Nettles (Urtica dioica) Identification