Plant Profile

UrticaUrtica

Nettles are perennial, herbaceous plants characterized by stinging hairs on their leaves and stems. They are found in many gardens and wild areas and are valued both as medicinal and useful plants, as well as ecologically important food plants for insects. However, their rapid spread often requires containment in the garden.

Urtica (Urtica): plant portrait - Wild herbs, Nettle family, Harvest March - September
Urtica: plant portrait. harvest: March - September.

Quick profile

Key data

Growing calendar
JanFebMarAprMayJunJulAugSepOctNovDec
Indoor sowing
Direct sowing outdoors
Planting outdoors
Harvest
Indoor sowingDirect sowing outdoorsPlanting outdoorsHarvest

Suitable growing locations:

Good neighbors

No data

Avoid

No data

Indoor & direct sowing

Urtica: Sowing and germination

Indoor sowing

Indoor starting is possible but rarely necessary for nettles. For controlled sowing, start cool and bright.

Direct sowing outdoors

Direct sow in spring or autumn on moist, nutrient-rich soil. Cover seed only lightly or press it in.

Seed depth0 - 0.5 cm
Germination temp15 - 22 °C
Germination time10 - 21 days
Light germinatorYes
Dark germinatorNo
Cold germinatorNo
Stratification neededNo
Pre-soaking recommendedNo

Planting & site

Urtica: Planting and spacing

Planting outdoors

Plant young plants or divided rhizome pieces in spring or autumn. Because nettles spread, containment is useful.

Plant spacing30 - 50 cm
Row spacing40 - 60 cm
Plants per m²4 - 9 per m²
Bed widthfrom 60 cm

Site & practical notes

Nettles are robust and undemanding but can spread aggressively. For harvesting young leaves, plants should be cut before flowering. Always wear gloves when harvesting and processing to protect against stinging hairs. The stinging hairs are neutralized by heating or drying. Nettles are valuable for the kitchen, as a medicinal remedy, and as fertilizer (nettle liquid feed).

Temperature & frost

Urtica: Temperature and site

Growing temperaturefrom 5 °C
Optimal temperature12 - 22 °C
Max. heatup to 30 °C
Soil temperature10 - 18 °C
Frost sensitiveNo
Late frost sensitiveNo
Heat tolerancemedium
Cold tolerancehigh

Water & nutrients

Urtica: Water, nutrients and care

Watermedium
Critical water phasesgermination, establishment after planting, strong spring leaf growth
Watering methodWater at soil level during establishment
Droughtmedium
Waterlogging sensitiveNo
Mulching recommendedYes
Nutrient needheavy feeder
Compost recommendedYes
Fertilizer sensitivitylow

Container & growth

Urtica: Container, support and growth

Container suitableYes
Pot sizeVolume: from 10 l; Recommended: from 20 l; Diameter: from 30 cm; Depth: from 25 cm
SupportNo
Height50 - 150 cm
Width30 - 80 cm
Root depth20 - 50 cm
Root spread40 - 100 cm
Yield50 - 300 g young leaves

Year plan

Urtica Calendar

Plants

In spring, the young shoots are most tender and are excellent for culinary use and for making nettle liquid feed.

Year overview
JanFebMarAprMayJunJulAugSepOctNovDec
Indoor sowing
Direct sowing outdoors
Planting outdoors
Harvest

Relevant now

June

  • Cut for nettle liquid feed or reduce patches.established or planned patch: Cut for nettle liquid feed or reduce patches.

Next up

July

  • No additional single task

Monthly tasks

Single tasks from monthly data; repeated seasonal windows are shown in the overview above.

PlantingHarvestGrowing

January

Quiet month

February

No additional single task

March

Harvest young shoots and check patches.

Harvest

  • Harvest young shoots and check patches.established or planned patch: Harvest young shoots and check patches.

April

Main harvest of young leaves; wear gloves.

Harvest

  • Main harvest of young leaves; wear gloves.established or planned patch: Main harvest of young leaves; wear gloves.

May

Cut for kitchen use before flowering.

Growing

  • Cut for kitchen use before flowering.established or planned patch: Cut for kitchen use before flowering.

June

Cut for nettle liquid feed or reduce patches.

Growing

  • Cut for nettle liquid feed or reduce patches.established or planned patch: Cut for nettle liquid feed or reduce patches.

July

No additional single task

August

No additional single task

September

Divide, plant, or sow if needed.

Planting

  • Divide, plant, or sow if needed.established or planned patch: Divide, plant, or sow if needed.

October

No additional single task

November

Quiet month

December

Quiet month

Flowering & pollination

Urtica Flowering & pollination

Self-fertility

wind-pollinated; often dioecious depending on species

Pollinator needed

no

Overview

Pollination is not relevant for leaf harvest. For seed formation, male and female flowers and wind pollination matter.

Notes

Common nettle is often dioecious; pollination is not primarily insect-driven.

Use & storage

Urtica Use & storage

Harvest

Harvest young shoot tips and leaves before flowering; later growth can be cut for nettle liquid feed. Wear gloves.

Storage

fresh herb, dried herb, or frozen greens

Storage life

Fresh 1-3 days; dried for several months when stored dark and dry.

Flavor

green, spinach-like, slightly herbal and mineral

Harvest

Harvest young shoot tips and leaves before flowering; later growth can be cut for nettle liquid feed. Wear gloves.

Processing

After harvest

Wear gloves, shake out cut material, wash it, and blanch, dry, or process promptly for kitchen use.

Edibility & safety

Urtica Edibility & safety

For people

In brief: which parts are edible, which parts remain risky, and whether raw consumption makes sense.

Edible parts:young leaves, shoot tips, seeds in small amounts
Caution parts:old fibrous stems, contaminated plants, plants from heavily fertilized or polluted sites
Raw consumption:Raw only after suitable processing such as very fine blending; blanching or heating is customary.

Safety notes

Stinging hairs irritate skin. For eating, heat, blanch, dry, or finely process. Use cautiously around medical concerns.

Animal safety

For animals, the specific plant part matters here: some parts may be suitable, while others should be avoided. At least one critical rating is listed for 1 animal types.

Animal safety by plant part

Each row shows which parts are more suitable and which parts are critical.

Companion animals

Dog icon for animal safety ratingDog

young leaves, shoot tips

old fibrous stems, contaminated plants, plants from heavily fertilized or polluted sites

Risk factors

Direct contact with stinging hairs, Consumption of raw or insufficiently processed parts, Consumption of large amounts

Symptoms

skin irritation, itching, mild vomiting

observe

Young leaves and shoot tips of stinging nettle are suitable for dogs in small amounts as a dietary supplement after heating, blanching, or drying. Old stems and raw plant parts may cause skin irritation and gastrointestinal upset due to stinging hairs. Caution is advised with large consumption or in sensitive dogs. In case of skin contact with stinging hairs, local irritation may occur. Consult a veterinarian if…

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Cat icon for animal safety ratingCat

young leaves, shoot tips

old fibrous stems, contaminated plants, plants from heavily fertilized or polluted sites

Risk factors

raw plant feeding, overfeeding, contaminated sources

Symptoms

mild vomiting, gastrointestinal upset, skin irritation on contact

observe

Young leaves and shoot tips of stinging nettle, when heated or blanched, are suitable for cats in small amounts as supplemental feed. Older plant parts and raw feeding may cause irritation. When in doubt, seek veterinary advice.

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Rabbit icon for animal safety ratingRabbit

No suitable parts listed

No risk parts listed

unknown

Young leaves and shoot tips of stinging nettle are suitable for rabbits as supplemental feed in small amounts after processing (blanching, drying, or fine chopping). Old, fibrous stems and contaminated plants should be avoided. Use cautiously if the animal has known health concerns. The stinging hairs can cause skin irritation upon direct contact.

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Guinea pig icon for animal safety ratingGuinea pig

young leaves, shoot tips

old fibrous stems, contaminated plants, plants from heavily fertilized or polluted sites

Risk factors

raw stinging hairs can irritate mucous membranes, overdosage may lead to kidney strain

Symptoms

skin irritation from contact with stinging hairs, gastrointestinal upset from excessive consumption

observe

Young leaves and shoot tips of stinging nettle are suitable for guinea pigs in small amounts after processing (blanching, drying, or fine blending) and provide nutritious supplementation. Old, fibrous parts and contaminated plants should be avoided. Skin contact with stinging hairs may cause temporary irritation. Excessive consumption may lead to gastrointestinal upset. No signs of severe poisoning with…

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Hamster icon for animal safety ratingHamster

young leaves, shoot tips

old fibrous stems, contaminated plants, plants from heavily fertilized or polluted sites

Risk factors

raw consumption without processing, consumption of old plant parts, contamination

Symptoms

skin irritation, itching, mild gastrointestinal upset

observe

Young leaves and shoot tips of stinging nettle are suitable for hamsters in small amounts after heating, blanching, or drying. Old stems and unprocessed plant parts may cause irritation due to stinging hairs. Consult a veterinarian if uncertain.

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Budgie icon for animal safety ratingBudgie

young leaves, shoot tips

old fibrous stems

Risk factors

Raw feeding without processing, Excessive quantity, Old or fibrous plant parts

Symptoms

Gastrointestinal upset with excessive consumption

observe

Young leaves and shoot tips of nettle are suitable for budgies after proper processing (blanching, drying, or fine chopping) in small amounts. Old stems contain more fiber and may cause digestive issues. Seeds only in very small amounts due to possible hormonal effects.

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Farm animals

Horse icon for animal safety ratingHorse

young leaves, shoot tips

old fibrous stems, contaminated plants, plants from heavily fertilized or polluted sites

Risk factors

Raw feeding without processing, Excessive amount, Use of old or contaminated plants

Symptoms

mild itching or burning in mouth or throat, possible gastrointestinal upset with overfeeding

observe

Young leaves and shoot tips of stinging nettle are suitable for horses as an occasional supplement when processed (blanching, drying, or fine grinding) and are nutrient-rich. Old stems and contaminated plants should be avoided. Consult a veterinarian if uncertain or if signs of irritation appear.

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Chicken icon for animal safety ratingChicken

young leaves, shoot tips

old fibrous stems, contaminated plants, plants from heavily fertilized or polluted sites

Risk factors

Feeding raw without processing, Consumption of old or fibrous parts, Contamination by pollutants

Symptoms

mild itching or redness on skin contact, possible mild gastrointestinal upset with overfeeding

observe

['Young leaves and shoot tips of stinging nettle are safe for chickens when processed (blanching, drying, or fine grinding) and provide nutritional benefits. Older parts and stems contain more stinging hairs and are less digestible. Improper feeding may cause mild irritation.']

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Duck icon for animal safety ratingDuck

young leaves, shoot tips

old fibrous stems, contaminated plants, plants from heavily fertilized or polluted sites

Risk factors

Raw consumption without processing can cause irritation from stinging hairs, Old or contaminated plants should be avoided

Symptoms

mild itching or redness from skin contact, possible mild gastrointestinal upset from overconsumption

observe

['Young leaves and shoot tips of stinging nettle are safe for ducks after proper processing (blanching, drying, or fine chopping) and provide good nutrition, including protein, iron, and vitamin C. Old stems and contaminated plants should be avoided due to potential irritation or pollutant load. Seeds should be given only in very small amounts, as overconsumption may cause digestive strain.']

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Goose icon for animal safety ratingGoose

young leaves, shoot tips

old fibrous stems

Risk factors

Raw consumption without processing, Consumption of old, fibrous plant parts

Symptoms

Skin irritation from contact with stinging hairs, gastrointestinal upset from excessive consumption

observe

['Young leaves and shoot tips are suitable and nutritious for geese after heating, blanching, or drying. Older stems contain more stinging hairs and are less digestible. Seeds only in small amounts due to possible hormonal effects.']

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Sheep icon for animal safety ratingSheep

young leaves, shoot tips

old fibrous stems

Risk factors

Consumption of old fibrous stems, unprocessed plant parts, contaminated sites

Symptoms

Skin irritation from contact with stinging hairs, gastrointestinal upset from excessive consumption of unprocessed parts

observe

['Young leaves and shoot tips are safe and nutritious for sheep after heating, blanching, or drying. Old stems are more fibrous and may irritate the digestive tract. Stinging hairs cause skin irritation on contact but are inactivated by heat. Seeds only in small amounts due to possible hormonal effects.']

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Goat icon for animal safety ratingGoat

young leaves, shoot tips

old fibrous stems

Risk factors

Consumption of old fibrous stems, unprocessed plant parts, contaminated sites

Symptoms

Skin irritation from contact with stinging hairs, gastrointestinal upset from excessive consumption of unprocessed parts

observe

No direct species-specific source was found for goats. This is a cautious inference from the sheep profile and the known plant-part risks.

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Cattle icon for animal safety ratingCattle

young leaves, shoot tips

old fibrous stems, contaminated plants, plants from heavily fertilized or polluted sites

Risk factors

consumption of old or fibrous parts, consumption of contaminated material

Symptoms

skin irritation, itching, mild discomfort with excessive consumption

observe

Young leaves and shoot tips of stinging nettle are safe for cattle when heated, blanched, or dried and provide nutritional value. Old stems and contaminated plants should be avoided. Consult a veterinarian if uncertain or if signs of skin irritation appear.

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Pig icon for animal safety ratingPig

young leaves, shoot tips

old fibrous stems

Risk factors

consumption of old or fibrous parts, insufficient processing prior to feeding

Symptoms

mild discomfort, gastrointestinal upset, skin irritation from contact with stinging hairs

observe

Young leaves and shoot tips of stinging nettle are suitable for pigs after heating or blanching and are occasionally fed as a nutritious supplement. Old stems contain more fiber and may irritate the digestive tract. Stinging hairs cause skin irritation on direct contact but are inactivated by heating or drying. Overfeeding may cause mild discomfort or diarrhea. No indications of serious toxicity when used properly.

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These guidelines are for general information only and do not replace veterinary diagnosis. If critical plant parts were ingested or the animal shows unusual behaviour or symptoms, seek veterinary advice.

Max risk

unknown

Highest status

do not feed

Urgency

unknown

Saving seed

Urtica Saving seed

Seed viability

2 - 4 years

Practical tips

Urtica Practical tips

Common beginner mistakes

Success pattern

Cultivating nettles in an edge area or a pot, regularly harvesting young shoots for culinary use and liquid feed.

High-impact tips

Grower observations

Plant Profile

Additional plant images

Urtica (Urtica): whole plant for plant portrait - Wild herbs, Nettle family, Harvest March - September
Urtica: plant portrait. harvest: March - September.

Health

Pests, Diseases

Pests

aphids

caterpillars on nettles

Plant health

Diagnosis help

Urtica Diagnosis help

Diagnosis

Caterpillar feeding on nettles is often part of its value as a wild plant.

Cultural prevention

Monitoring

First response

FAQ

How can I harvest nettles safely?

Always wear thick gloves and long clothing when harvesting to avoid skin contact with stinging hairs. Cut young shoots and leaves before flowering.

How do I neutralize stinging hairs?

Stinging hairs are neutralized by heating (cooking, blanching) or drying the nettles. Processed nettles are no longer irritating.

Can I grow nettles in a pot?

Yes, growing nettles in a pot is a good method to control their spread. Use a sufficiently large pot with good drainage.

What are nettles good for?

Nettles are versatile: as an edible wild vegetable, for medicinal teas, as a valuable fertilizer (nettle liquid feed), and as an important habitat and food plant for insects and butterfly caterpillars.

Is Urtica safe for Dog?

Urtica is classified as do not feed for Dog. Risk: unknown. Urgency: observe. Young leaves and shoot tips of stinging nettle are suitable for dogs in small amounts as a dietary supplement after heating, blanching, or drying. Old stems and raw plant parts may cause skin irritation and gastrointestinal upset due to stinging hairs. Caution is advised with large consumption or in sensitive dogs. In case of skin contact with stinging hairs, local irritation may occur. Consult a veterinarian if…

Is Urtica safe for Cat?

Urtica is classified as moderation only for Cat. Risk: unknown. Urgency: observe. Young leaves and shoot tips of stinging nettle, when heated or blanched, are suitable for cats in small amounts as supplemental feed. Older plant parts and raw feeding may cause irritation. When in doubt, seek veterinary advice.

Is Urtica safe for Rabbit?

Urtica is classified as not established for Rabbit. Risk: unknown. Urgency: unknown. Young leaves and shoot tips of stinging nettle are suitable for rabbits as supplemental feed in small amounts after processing (blanching, drying, or fine chopping). Old, fibrous stems and contaminated plants should be avoided. Use cautiously if the animal has known health concerns. The stinging hairs can cause skin irritation upon direct contact.

Is Urtica safe for Guinea pig?

Urtica is classified as moderation only for Guinea pig. Risk: unknown. Urgency: observe. Young leaves and shoot tips of stinging nettle are suitable for guinea pigs in small amounts after processing (blanching, drying, or fine blending) and provide nutritious supplementation. Old, fibrous parts and contaminated plants should be avoided. Skin contact with stinging hairs may cause temporary irritation. Excessive consumption may lead to gastrointestinal upset. No signs of severe poisoning with…

Sources

Public sources

  1. Wikidata entity

    Wikidata · 2026-05-12

  2. GBIF species match

    GBIF · 2026-05-12

  3. Deutschsprachige Wikipedia: Brennnesseln

    Wikipedia · 2026-05-12

  4. English Wikipedia: Urtica

    Wikipedia · 2026-05-12

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