Urtica dioica
Stinging nettle, common nettle, dioecious nettle, burning nettle: the garden's much-maligned plant is actually one of its most useful. Its stinging hairs are tiny silica ampoules that break on contact — a remarkable defense mechanism that does not prevent you from cooking it or turning it into the best free fertilizer for the vegetable garden.
Characteristics:
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Hardy perennial: a herbaceous plant native to Eurasia, it forms long-lasting colonies through its rhizomes.
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Three uses: vegetable, liquid fertilizer, and biodiversity refuge.
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Rich in nitrogen: its nettle tea is a natural fertilizer well known to gardeners.
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Very easy: it grows on its own; simply give it a corner.
Precautions:
- Its stinging hairs cause itching on contact: wear gloves and long sleeves when harvesting and handling it.
- Cooking, drying, or simply rolling it with a rolling pin completely destroys its stinging power — once cooked, it does not sting at all.
- It is spreading: its rhizomes colonize an area quickly. Reserve a defined corner for it rather than planting it among your crops.
Sowing advice:
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Exposure: partial shade to full sun.
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Soil: rich in organic matter, deep, moist, and well drained. Stinging nettle is a nitrophilous plant: it seeks nitrogen-rich soils, which explains why it grows spontaneously near compost heaps and old manure piles. Its spontaneous presence is also a good indicator of fertility.
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Method: sow in spring, on the surface or barely covered: its tiny seeds need light. Keep moist until germination. It grows just as well in the ground as in a planter, which makes it possible to contain it. See how to sow seeds.
Care advice:
- None, apart from keeping it contained. Water during dry periods if you want a regular supply of tender leaves.
- Cut the clump back after each harvest: it will produce new, more tender shoots.
Harvesting advice:
- Pick the young shoots, the first four or six leaves, in spring and after each cutback. Avoid older leaves and plants that have gone to seed, as they are tougher.
- For nettle tea: steep 1 kg of fresh leaves in 10 liters of water for one to two weeks, stirring daily, then strain. Diluted to 10%, it can be applied by watering at the base of heavy-feeding crops.
Beneficial combinations:
- Planted along the edge of the garden or near the compost, it speeds up decomposition and provides the raw material for nettle tea. See composting and companion plants.
Benefits for biodiversity:
- It is the exclusive host plant for the caterpillars of several of our most beautiful butterflies: Peacock, Red Admiral, Small Tortoiseshell, and Map. Without nettles, there would be none of these butterflies — a patch of nettles at the back of the garden is the most effective thing we can do for them.
- It also shelters specialized aphids and therefore ladybirds, serving as a reservoir for beneficial insects in spring.
Uses:
- Young leaves cooked like spinach, in soup, quiche, pesto, or gnocchi — cooking removes all stinging power. As a fertilizer tea in the vegetable garden.
- A traditional medicinal plant, listed in the French Pharmacopoeia. See our medicinal plants to sow.
Harvesting your own seeds:
Since stinging nettle is dioecious, both male and female plants are needed to produce seeds. Leave the hanging clusters on the female plants to turn brown, then shake them over a container — while wearing gloves. See saving your seeds.
Commitment to Quality: at SemiSauvage - Permaculture, we grow and select our seeds with respect for all living things as our guiding principle. Based near the Volcanoes of Auvergne, we choose open-pollinated, non-hybrid varieties, tested for their germination rate, carefully sorted and packaged, with no chemical treatment. Our belief: to give gardeners back the ability to reseed, year after year, with seeds that truly belong to them.
The much-maligned plant that nourishes your plants, your butterflies, and your soups.
