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Is Wisteria toxic to cats?

YES (TOXIC)
Unfortunately, Wisteria 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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Scientific Name:Wisteria spp.
Family:Fabaceae
Toxic Principles:Lectin, wisterin glycoside
Clinical Signs:Vomiting (sometimes with blood), diarrhea, depression
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 Wisteria Toxic to Cats?

Wisteria is a type of flowering plant that is popular for its beautiful cascading blooms. It is often used in landscaping to add color and drama to gardens, trellises, and other outdoor spaces. However, if you have a pet cat, you might be wondering whether wisteria is a safe choice for your furry friend. In this article, we'll explore whether wisteria is toxic to cats and what steps you can take to make sure your cat stays safe.

Are Wisteria Plants Toxic to Cats?

The short answer is yes, wisteria plants are toxic to cats. The plant contains a toxic compound called lectin, which can cause a range of symptoms if ingested by cats. These symptoms include vomiting, diarrhea, loss of appetite, and lethargy. In severe cases, wisteria poisoning can even result in kidney failure and death.

It's important to note that all parts of the wisteria plant are toxic, including the leaves, stems, pods, and flowers. Even small amounts of the plant can be dangerous to cats, so it's important to keep your pet away from wisteria plants at all times.

What Are the Symptoms of Wisteria Poisoning in Cats?

If your cat ingests wisteria, you may notice some of the following symptoms:

  • Vomiting
  • Diarrhea
  • Loss of appetite
  • Lethargy
  • Dehydration
  • Incoordination
  • Tremors
  • Seizures
  • Coma
  • Death

If you suspect that your cat has ingested wisteria, it's important to seek veterinary care immediately. Your vet may recommend inducing vomiting or administering activated charcoal to help remove any remaining plant material from your cat's system. In severe cases, your cat may need to be hospitalized and given supportive care, such as IV fluids and medication to manage symptoms.

How Can You Keep Your Cat Safe From Wisteria?

The best way to keep your cat safe from wisteria poisoning is to prevent your pet from coming into contact with the plant. Here are some tips:

  • Avoid planting wisteria in areas where your cat can access it.
  • Keep your cat indoors or supervise your pet when outside to make sure they don't come in contact with wisteria.
  • If you have a wisteria plant in your garden or on your property, make sure your cat can't access it by installing barriers or fencing.
  • If you have cut wisteria flowers in your home, make sure they are out of reach of your cat.

If you think your cat has ingested wisteria or any other toxic substance, contact your veterinarian immediately. In some cases, early intervention can prevent serious complications and save your pet's life.

Conclusion

Wisteria plants are toxic to cats and can cause a range of symptoms if ingested. All parts of the plant are toxic, including the leaves, stems, pods, and flowers. Symptoms of wisteria poisoning in cats include vomiting, diarrhea, loss of appetite, and lethargy, and in severe cases, kidney failure and death. To keep your cat safe from wisteria poisoning, prevent your pet from coming into contact with the plant. If you suspect that your cat has ingested wisteria, seek veterinary care immediately.

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