Species library · Plants & herbs

Tansy: poisonous

Tanacetum vulgare

☠ Poisonous. Do not eat.What to do if poisoning is suspected

Tansy is classed as poisonous in the Forage field guide. This page helps you identify it and tell it apart from similar species. It is not a foraging guide. When in doubt, have a find identified by an expert.

If you suspect poisoning, call your local poison control center right away. If someone has trouble breathing, has a seizure or is unconscious, call emergency services. Don't wait for symptoms: with some poisonings they only start hours later. Keep any leftovers of the find, they help identify it.

Usually seen from April to October in the northern hemisphere. Found in Disturbed ground, Grassland, Waterside. Can be confused with similar species.

☠ Poisonous
Tansy (Tanacetum vulgare)

Photo: (c) Maria, some rights reserved (CC BY), uploaded by Maria · iNaturalist

When Tansy appears

Typical window in the northern hemisphere. The southern hemisphere runs about six months offset.

Where it grows

Tansy is usually found in Disturbed ground, Grassland, Waterside.

⚠ Look-alikes

Look up Tansy in the app

In the Forage app, Tansy has a full field guide entry with more photos, key features and the species it can be confused with.

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Tansy: common questions

Is Tansy poisonous?

Yes. Tansy is classed as poisonous in the Forage field guide. Do not eat it. If you suspect poisoning, call your local poison control center right away, or emergency services if it is life-threatening.

When does Tansy appear?

Tansy usually appears from April to October in temperate northern regions. The exact timing shifts with latitude, elevation and each year's weather.

Where does Tansy grow?

Tansy is usually found in Disturbed ground, Grassland, Waterside.

What can Tansy be confused with?

Toxic look-alikes: Common ragwort, Ragwort, Canada goldenrod. Only a confident identification tells them apart. When in doubt, have a find checked by an expert.

One note before you head out

Forage helps you discover and identify wild plants, but identification is never 100% certain. Many edible plants have toxic lookalikes. Never eat anything you find based only on what this app tells you. Always confirm with a field guide, an experienced forager or a local expert. The season score tells you where to look, too: it’s not a guarantee. Mind conservation law and property rights as well.

Species photos via Wikimedia Commons and iNaturalist · full credits