What the ASPCA says
Oregano (Origanum vulgare hirtum) appears on the ASPCA Animal Poison Control Center's list of plants toxic to cats. The ASPCA list does not mean every exposure is an emergency, but it does mean you should keep the plant out of reach and call your vet or a poison line if your cat eats some.
Keeping it away from your cat
Cats climb, so a high shelf is rarely enough. Move toxic plants to a room your cat can't enter, swap them for a cat-safe plant, or give your cat its own pot of cat grass to chew. Pick up fallen leaves and petals.
If your cat ate some
- Move your cat away from the plant and take away any pieces, including fallen leaves and petals.
- Call your vet, an emergency clinic, ASPCA Animal Poison Control ((888) 426-4435) or the Pet Poison Helpline (855-764-7661). Both poison lines are open around the clock.
- Take the plant, a photo of it or its label with you so the vet knows exactly what it is.
- Don't try to make your cat vomit unless a vet tells you to.
Cat-safe alternatives
The ASPCA lists these as non-toxic to cats. Any plant can still upset a cat's stomach if eaten in quantity, but none of these are poisonous:
Other herbs: quick answers
| Plant | For cats |
|---|---|
| Lavender Lavandula angustifolia | Toxic |
| Mint Mentha species | Toxic |
| Catnip Nepeta cataria | Toxic |
| Parsley Petroselinum crispum | Toxic |
| Rosemary Rosmarinus officinalis | Non-toxic |
| Basil Ocimum basilicum | Non-toxic |
Frequently asked questions
Is oregano toxic to cats?
Yes. The ASPCA lists oregano (Origanum vulgare hirtum) as toxic to cats. Keep it out of reach and call your vet if your cat chews it.
What should I do if my cat ate oregano?
Call your vet, an emergency clinic, ASPCA Animal Poison Control ((888) 426-4435) or the Pet Poison Helpline (855-764-7661). Take the plant or a photo of it with you.
Sources
Checked October 17, 2026. We are a reference, not a vet: if in doubt, call yours. How we check.