No, rosemary is not toxic to cats
Rosemary is non-toxic to cats and dogs (ASPCA), and rosemary extract is often used as a natural preservative in pet food. Concentrated rosemary essential oil is a different matter and should not be given to pets.
Rosemary and cats: key facts
| Toxic to cats? | Non-toxic |
| Toxic to dogs? | Non-toxic |
| Scientific name | Salvia rosmarinus (Rosmarinus officinalis) |
| Toxic compound | None known |
| Toxic parts | Not toxic |
| Plant type | Herb |
What happens if a cat eats rosemary?
- Mild stomach upset if a lot is eaten
Why rosemary is considered safe
Rosemary is not known to contain compounds that are poisonous to cats. That does not mean cats should eat it: cats cannot digest large amounts of plant fiber, so eating a lot of any plant can cause a short bout of vomiting or diarrhea.
What to do if your cat ate rosemary
- Remove any remaining plant material from your cat's mouth and move the plant out of reach.
- Offer fresh water. Mild vomiting from plant fiber usually settles within a few hours.
- Check the pot: fertilizer sticks, systemic pesticides, slug bait and cocoa mulch can be more dangerous than the plant itself.
- Call your vet if vomiting or diarrhea lasts more than 24 hours, or if your cat seems lethargic.
When treatment is needed
Treatment is rarely needed. If vomiting or diarrhea lasts more than a day, or your pet seems unwell, call your vet, as something else may be going on (for example fertilizer, pesticide or a swallowed piece of pot).
How to keep your cat away from rosemary
- Place rosemary on high shelves or in hanging planters away from furniture cats can climb, or in a room your cat cannot enter.
- Give your cat something better to chew: a pot of cat grass or catnip often distracts cats from houseplants.
- Pick up fallen leaves, petals and pollen promptly, and empty vases where pets can reach them.
Rosemary and cats: FAQ
Is rosemary poisonous to cats?
Rosemary is non-toxic to cats, according to the ASPCA. Eating a lot of any plant can still cause mild stomach upset.
Can I keep rosemary in a house with cats?
Yes. Rosemary is considered pet-safe. Keep it where your cat cannot knock it over or dig in the soil, and avoid pesticide or fertilizer products pets could lick.
Is rosemary toxic to dogs too?
No. Rosemary is also non-toxic to dogs (ASPCA).
Other plants toxic to cats
- LiliesHighly toxic
- AzaleasHighly toxic
- OleanderHighly toxic
- Sago PalmsHighly toxic
- FoxgloveHighly toxic
- Lily of the ValleyHighly toxic
- YewHighly toxic
- Autumn CrocusHighly toxic
Sources
- ASPCA Animal Poison Control: Toxic and Non-Toxic Plants for Cats
- Merck Veterinary Manual: Poisonous Plants
Toxicity ratings follow the ASPCA Animal Poison Control Center plant lists. Severity depends on the amount eaten, the part of the plant and your cat's size and health. When in doubt, call your vet.