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Is Rosemary toxic to cats?

NO (NON-TOXIC)
Good news, Rosemary is a cat safe plant! While this plant is non-toxic, it may still irritate your cat's tummy and potentially cause vomitting or diarrhea if ingested.
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Additional Names:Anthos
Scientific Name:Rosmarinus officinalis
Family:Lamiaceae
Detailed Write-up
Author:
Alec
Last Updated:
7/13/25

Is Rosemary Toxic to Cats?

Introduction

As pet owners, it is natural to want to give our furry friends the best care and treatment possible. This includes providing them with a healthy and balanced diet. Herbs like rosemary are known for their various health benefits and have become increasingly popular as a supplement or flavor enhancer in pet food. But, what about cats? Can they eat rosemary?

Rosemary Overview

Rosemary is a perennial herb commonly grown in the Mediterranean region and is often used in cooking and as a medicinal herb. The plant’s fragrant leaves contain essential oils that are rich in antioxidants and anti-inflammatory compounds, making it a popular ingredient in various products, such as culinary seasoning and natural remedies.

Is Rosemary Safe for Cats?

Studies have shown that the essential oils present in rosemary can be harmful to cats. The oils contain camphor, which is toxic to felines and can cause adverse reactions such as vomiting, diarrhea, and even liver damage if ingested in large amounts.

It is important for cat owners to note that rosemary is often used in dry cat food as a natural preservative and as a flavoring agent. However, the amount of rosemary present in dry cat food is typically low and is generally considered safe in small amounts.

Other Herbs That Are Toxic to Cats

While rosemary is generally safe for cats in small amounts, it is essential to know that some herbs pose an even more significant risk to felines. Here are a few herbs that pet owners should be careful when feeding their cats:

  • Catnip: Contrary to popular belief, catnip is not entirely harmless to felines. Overindulging in catnip can cause vomiting, diarrhea, and even lead to aggression and anxiety in some cats.
  • Garlic and onions: These herbs contain compounds that can damage a cat's red blood cells and lead to anemia.
  • Wormwood: Wormwood contains thujone, which can cause seizures, tremors, and even death in cats if ingested in high amounts.

Alternative Herbs for Cats

While some herbs are toxic to cats, others are safe for felines and can be beneficial to their health. Here are a few cat-friendly herbs that pet owners can consider:

  • Catnip: As mentioned earlier, catnip is safe for most cats and can be used as a natural stress reliever.
  • Valerian Root: Valerian root is a natural sedative that can help calm anxious cats.
  • Chamomile: Chamomile has anti-inflammatory and calming properties and is often used to treat digestive issues, such as upset stomach and diarrhea.

Conclusion

In summary, while rosemary is a popular herb with many health benefits, it is important for cat owners to know that it contains essential oils that are toxic to felines and can cause adverse reactions. If you're unsure about feeding your cat any herbs, it is always recommended to consult your veterinarian first.

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