Species library · Plants & herbs

Castor Bean: deadly poisonous

Ricinus communis

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

Castor Bean is classed as deadly 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 August to October in the northern hemisphere. Found in Disturbed ground.

☠ Deadly poisonous
Castor Bean (Ricinus communis)

Photo: no rights reserved, uploaded by 葉子 · iNaturalist

When Castor Bean appears

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

Where it grows

Castor Bean is usually found in Disturbed ground.

Look up Castor Bean in the app

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

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Castor Bean: common questions

Is Castor Bean poisonous?

Yes. Castor Bean is classed as deadly 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 Castor Bean appear?

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

Where does Castor Bean grow?

Castor Bean is usually found in Disturbed ground.

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