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Is Perennial Pea toxic to cats?

YES (TOXIC)
Unfortunately, Perennial Pea 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:Sweet Pea, Everlasting Pea
Scientific Name:Lathyrus latifolius
Family:Fabaceae
Toxic Principles:Aminoproprionitrite
Clinical Signs:Weakness, lethargy, pacing, head pressing, tremors, seizures and possibly 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 Perennial Pea Toxic to Cats?

As a cat owner, you may find yourself in a constant struggle to keep plants and flowers out of your feline friend's reach. This can be especially difficult when it comes to outdoor plants, and one plant that may catch your attention is the perennial pea. But is this plant safe for cats to be around? Let's explore the potential dangers of the perennial pea for your beloved pets.

What is Perennial Pea?

Perennial pea (Lathyrus latifolius) is a flowering plant that belongs to the legume family. It is native to Europe and Asia but has since been introduced to other parts of the world, including North America, where it is commonly grown as an ornamental plant. The plant can grow up to six feet tall and produces clusters of pink, white, or purple flowers that bloom in the summer. Its evergreen leaves are also quite attractive, making it a popular choice among gardeners.

Potential Risks to Cats

While perennial pea is considered non-toxic to humans, dogs, and horses, there is still some debate about its safety for cats. Some sources claim that the plant is toxic to cats, while others insist that it is not. So, which is it?

Unfortunately, there is no clear answer. There have been no studies conducted on the toxicity of perennial pea specifically to cats, so its potential risks remain largely unknown. However, we can look at the plant's properties to determine whether or not it may pose a danger to our feline friends.

Chemical Composition

Perennial pea contains a range of chemical compounds that are common in legume plants, including saponins, glycosides, and alkaloids. These chemicals can be harmful to animals in high doses and may cause symptoms such as vomiting, diarrhea, abdominal pain, and lethargy. However, it is important to note that the concentration of these chemicals varies depending on different factors such as the age of the plant, the soil it is grown in, and the climate in which it is cultivated.

Symptoms to Look Out For

As mentioned, there have been no specific studies on the toxicity of perennial pea to cats, so there are no established symptoms to look out for. However, based on the plant's chemical composition, we can make some educated guesses about what may happen if a cat ingests it.

Common symptoms of plant poisoning in cats include vomiting, diarrhea, abdominal pain, loss of appetite, lethargy, and dehydration. In severe cases, the cat may experience seizures, tremors, difficulty breathing, and even coma. If you suspect that your cat has ingested perennial pea or any other potentially toxic plant, it is important to seek veterinary care immediately.

Preventative Measures

As with any plant, it is important to take precautions to ensure that your cat's exposure to perennial pea is minimized. Here are some preventative measures you can take:

  • Keep perennial pea plants out of your cat's reach: Do not grow the plant anywhere that your cat can easily access.
  • Maintain a clean, safe environment: Cats can be curious creatures, so make sure to keep any plants or flowers in your home or garden properly trimmed and secured.
  • Be aware of other plants that may be toxic to cats: Do your research and make sure that any plants or flowers you bring into your home are safe for cats to be around.

Conclusion

While there is no definitive answer on whether or not perennial pea is toxic to cats, it is best to err on the side of caution. Given the plant's chemical composition and the potential symptoms it may cause, it is a good idea to keep it away from your feline companion. If you do suspect that your cat has ingested any toxic substance, it is always better to be safe than sorry by seeking veterinary care immediately.

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