What should I do if my cat ate Castor Bean?

Get your cat to a veterinarian immediately — don't wait for symptoms. Take a sample or photo of the plant, and a count of seeds if possible. Do not induce vomiting at home unless ASPCA Poison Control or your vet specifically directs you to. Call immediately. Any suspected ingestion of castor bean — seeds, leaves, or processed mash — is a 'go now' situation, not a 'wait and see.' Phone ASPCA Poison Control at 888-426-4435 or Pet Poison Helpline at 855-764-7661 on the way to the clinic.

What should I do if my dog ate Castor Bean?

Get your dog to a veterinarian immediately. Bring a sample of the plant or any remaining seeds for identification. Do not try to induce vomiting at home unless poison control or your vet specifically tells you to — Pet Poison Helpline notes that decontamination with activated charcoal and IV fluids is most effective when done at the clinic. Call immediately — this is a true emergency. Phone ASPCA Poison Control (888-426-4435) or Pet Poison Helpline (855-764-7661) on the way to the clinic, even if your dog seems fine. Symptoms can be delayed by 12–48 hours and waiting can be fatal.

Castor Bean — no rights reserved, uploaded by 葉子 — Photo by no rights reserved, uploaded by 葉子iNaturalistCC0

Photo by no rights reserved, uploaded by 葉子iNaturalistCC0

Pet safety reference

Castor Bean

Q: Is Castor Bean safe for cats?

Castor Bean is potentially toxic to cats. This plant is considered highly toxic. Ingestion of any part, especially seeds, is a medical emergency; contact your veterinarian or an animal poison control center immediately.

Q: Is Castor Bean safe for dogs?

Castor Bean is potentially toxic to dogs. The plant contains ricin, which is extremely dangerous to dogs. Immediate veterinary intervention is required if ingestion is suspected.

Ricinus communis

The African Wonder Tree is a fast-growing ornamental shrub known for its large, palm-like leaves and unique seed pods. It contains ricin, a highly potent toxin found throughout the plant, with the highest concentration in the seeds.

Check a list

African Wonder TreeCastor BeanCastor Oil PlantRicinus communis

Light: Full sun
Habit: Shrub
Care: Low

Safety status

Cats & Dogs

Potentially toxic

Consulted references classify the plant as toxic or irritating for that pet type.

Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.

Sources

ASPCA Toxic Plant List

If a pet has chewed or swallowed plant material and is showing symptoms, contact a veterinarian or poison resource immediately. This product is for structured reference, not diagnosis.

Cats — concern notes

Common signs

Abdominal pain, vomiting, diarrhea, excessive thirst, weakness, and potential tremors or seizures.

Escalation note

This plant is considered highly toxic. Ingestion of any part, especially seeds, is a medical emergency; contact your veterinarian or an animal poison control center immediately.

Dogs — concern notes

Common signs

Severe gastrointestinal distress, drooling, loss of appetite, dehydration, and potential organ damage.

Escalation note

The plant contains ricin, which is extremely dangerous to dogs. Immediate veterinary intervention is required if ingestion is suspected.

Safer alternatives

No hand-picked alternatives for this plant yet. You can still pick your own using the Compare button on any other plant.

Source evidence

ASPCA Toxic Plant List

toxicology · 99% reliability

Open source

Castor Bean is toxic to both cats and dogs due to the presence of ricin.

NC State Extension Plant Toolbox

botanical · 94% reliability

Open source

Ricinus communis is a large, fast-growing shrub that is highly poisonous if ingested.

cats safety page My cat ate Castor Bean dogs safety page My dog ate Castor Bean

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Same growing conditions

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