How to Grow Stinging Nettle
Urtica dioica
Stinging nettle is a hardy perennial herb that grows vigorously in moist, nitrogen-rich soil in sun or partial shade. Harvest young shoot tips in spring wearing gloves — cooking destroys the sting completely. Contain its spread by mowing the surrounding area or growing in a sunken pot. Cut back to ground level each autumn; it regrows reliably from the roots each spring. Excellent for wildlife, supporting butterfly larvae and providing iron-rich greens for the kitchen.
Yearly Lifecycle
Care Essentials
Rarely needed. Nettles thrive in nitrogen-rich soil naturally. Avoid feeding to prevent overly lush, rank growth.
Watch For
- Aphids on young shoots
- Caterpillars (welcome if growing for wildlife)
- Slugs on emerging spring shoots
Companions
Comfrey, Borage, Wildflowers
Pet Safety
Care Requirements
Light
Sun or partial shade; tolerates most light conditions
Stinging nettle grows well in full sun or partial shade. It tolerates a wide range of light conditions but produces the most tender young growth in a sheltered, partially shaded spot.
Watering
Keep moist; prefers damp, fertile soil
Prefers consistently moist, fertile soil. Water regularly during dry spells, especially in the first season. Established plants are fairly drought-tolerant but produce better harvests with regular moisture.
Fertilizing
Rarely needed; thrives in nitrogen-rich soil naturally
Nettles are naturally adapted to nitrogen-rich soil and rarely require supplemental feeding. Avoid over-feeding, which produces rank, coarse growth. A light mulch of compost in spring is sufficient.
Pruning
Cut to ground level in autumn; remove dead stems in spring
Cut the whole plant back to ground level in late autumn after the foliage dies back. In early spring, remove any remaining dead stems to allow new growth to emerge freely. Divide congested clumps every 3-4 years.
Spacing
45cm apart; contain spread to prevent invasiveness
Space plants 45cm apart in a dedicated patch. Stinging nettle spreads by underground rhizomes and can become invasive. Mow or dig around the edge of the patch regularly, or grow in a sunken container without drainage holes.
Support
No support needed
Stinging nettle is self-supporting and does not require staking or other support structures. Tall plants in exposed sites may lean but will not need tying in.
Growing Tips
Always wear gloves
The hollow stinging hairs inject formic acid and histamine. Thick rubber gloves are essential when harvesting, dividing, or pruning. Cooking, blanching, or drying neutralises the sting entirely.
Harvest early for best flavour
Pick the top 5-10cm of young spring shoots before the plant flowers. Once flowering begins, leaves become coarser and less palatable. A second flush of tender growth appears after cutting back.
Wildlife powerhouse
Nettles support over 40 insect species including red admiral, peacock, and comma butterfly larvae. A dedicated nettle patch in a sunny corner is one of the highest-value wildlife habitats in a garden.
Make a liquid fertiliser
Steep a bunch of nettles in a bucket of water for 2-4 weeks to make a potent nitrogen-rich liquid feed. Dilute 1:10 before use. Strong-smelling but excellent for leafy vegetables.
Spacing & Planting
| Plant spacing | 45 cm |
| Row spacing | 60 cm |
| Mature height | 120 cm |
| Mature spread | 60 cm |
Vigorous spreading perennial to 1.2m. Contains stinging trichomes — wear gloves when handling. Harvest young shoot tips in spring before flowering. Excellent wildlife plant hosting comma, red admiral, and peacock butterfly larvae.
