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Is Running Myrtle toxic to cats?

YES (TOXIC)
Unfortunately, Running Myrtle is toxic and potentially harmful to cats. We recommend you keep your feline friends away from this plant. See the table below for more information.
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Additional Names:Periwinkle, Vinca
Scientific Name:Vinca rosea
Family:Apocynaceae
Toxic Principles:Vinca Alkaloids
Clinical Signs:Vomiting, diarrhea, low blood pressure, depression, tremors, seizures, coma, death.
If you think your cat may have ingested a poisonous substance, call 888 426 4435 or your local vet
Detailed Write-up
Author:
Alec
Last Updated:
7/13/25

Is Running Myrtle Toxic to Cats?

As a cat owner, it's understandable to have concerns about the plants that you grow in your garden or bring into your home. Many plants are toxic to cats and can cause serious harm or even fatalities. One of the common questions asked by cat owners is whether running myrtle is toxic to cats and if it's safe to have in their homes. This article aims to provide you with the information you need to know about running myrtle and its effects on cats.

What is Running Myrtle?

Running myrtle, also known as Vinca minor, is a popular perennial plant that is commonly used for ground cover and in hanging baskets because of its attractive blue and purple flowers. It's a low-maintenance plant that's easy to grow and can thrive in both full sun and full shade. Running myrtle is native to Europe and the Mediterranean region, but it's now found all over the world.

Is Running Myrtle Toxic to Cats?

There's a bit of confusion around whether running myrtle is toxic to cats or not. Some sources claim that running myrtle is toxic to cats, while others claim that it's safe. To clear things up, we looked into the scientific literature and found that there is very little information on the toxicity of running myrtle to cats specifically.

However, we did find a study that looked into the toxic effects of Vinca alkaloids, which are compounds found in running myrtle, on cats and dogs. According to the study, Vinca alkaloids can cause toxicity in cats and dogs, but the effects depend on the dosage and the individual animal's sensitivity. The study also found that cats were more susceptible to Vinca alkaloid toxicity than dogs, and that the most common signs of toxicity are gastrointestinal and neurologic signs.

Based on this information, it's safe to assume that running myrtle can be toxic to cats if they ingest it. However, the toxicity of running myrtle is likely to be low in most cases, and most cats will not experience any adverse effects from it. As with any plant, it's always advisable to keep it out of reach of pets to prevent accidental ingestion.

What Are the Symptoms of Running Myrtle Toxicity in Cats?

If your cat has ingested running myrtle, they may exhibit the following symptoms:

  • Vomiting
  • Diarrhea
  • Lethargy
  • Loss of appetite
  • Abdominal pain
  • Weakness
  • Tremors
  • Seizures

If you notice any of these symptoms in your cat, it's important to seek veterinary attention right away. Your vet can assess your cat's condition and provide the appropriate treatment.

How Can I Keep My Cat Safe Around Running Myrtle?

If you have running myrtle or other plants that are potentially toxic to your cat, there are several ways to ensure your cat's safety:

  • Keep the plants out of reach: Cats are curious by nature and can be attracted to plants, especially if they are in hanging baskets or other elevated locations. Keeping the plants out of reach is the best way to prevent accidental ingestion.
  • Provide alternative stimulation: Cats need stimulation and mental enrichment. Providing them with toys, scratching posts, and other forms of stimulation can help redirect their attention away from plants.
  • Supervise your cat: If your cat is particularly curious or tends to chew on plants, it may be necessary to supervise them when they're near the plants.

Conclusion

Running myrtle can be toxic to cats if they ingest it, but the toxicity is likely to be low in most cases. While there's no conclusive evidence on the effects of running myrtle on cats specifically, it's always advisable to keep any potentially toxic plants out of reach of pets to prevent accidental ingestion. If you notice any of the symptoms of toxicity in your cat, seek veterinary attention right away.

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