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Is Mother-in-Law toxic to cats?

YES (TOXIC)
Unfortunately, Mother-in-Law 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:Monstera deliciosa
Family:Araceae
Toxic Principles:Calcium oxalate crystals
Clinical Signs:Oral irritation, intense burning and irritation of the mouth, lips, tongue, excessive drooling, vomiting, difficulty in swallowing.
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 Mother-in-Law Toxic to Cats?

Understanding the Risks and Precautions

Cats are beloved pets that bring joy and companionship to many households. As responsible pet owners, it is our duty to ensure their safety and well-being. This includes being mindful of the potential hazards that can pose a threat to their health. One such threat is the mother-in-law plant, also known as the snake plant or Sansevieria trifasciata.

The Toxicity of Mother-in-Law Plant

The mother-in-law plant is a popular ornamental indoor plant that is native to West Africa. It has tall, stiff vertical leaves that are cylindrical in shape and come in a variety of shades, including green, yellow, and variegated. While the mother-in-law plant is prized for its aesthetic appeal, it poses a serious risk to cats.

The mother-in-law plant contains saponins, a group of chemicals that have toxic properties. Saponins can cause vomiting, diarrhea, and in severe cases, even death. Cats are especially vulnerable to the toxic effects of saponins because they lack the liver enzyme necessary to break down these chemicals effectively. This means that even a small amount of saponins can cause serious harm to a cat.

The toxic effects of the mother-in-law plant can be further exacerbated if a cat chews on the leaves or ingests the plant. Ingestion can lead to gastrointestinal distress, loss of appetite, and dehydration. The plant’s sharp leaves can also cause damage to a cat’s mouth and throat, leading to pain and discomfort.

Recognizing the Symptoms of Poisoning

If you suspect that your cat has ingested any part of the mother-in-law plant, it is important to act quickly. The following are some common symptoms of poisoning:

  • Vomiting
  • Diarrhea
  • Loss of appetite
  • Lethargy
  • Difficulty breathing
  • Seizures

If your cat exhibits any of these symptoms, contact your veterinarian immediately. They can advise you on the appropriate course of action to take based on your cat’s symptoms and medical history.

Preventing Poisoning

Preventing your cat from being exposed to the mother-in-law plant is the best way to avoid the risk of poisoning. If you have a mother-in-law plant in your home, it is important to keep it out of reach of your cat. You can do this by placing it in a high location that your cat cannot access or by using a protective barrier such as a pet gate.

You can also opt for cat-friendly alternatives to the mother-in-law plant, such as spider plants, African violets, or Boston ferns. These plants are safe for cats and can still add beauty to your home.

Conclusion

The mother-in-law plant is a beautiful ornamental plant that is toxic to cats. It contains saponins that can cause gastrointestinal distress, loss of appetite, and other serious symptoms if ingested. As responsible pet owners, it is our duty to protect our cats from potential hazards such as the mother-in-law plant. By being mindful of the dangers and taking appropriate precautions, we can ensure that our furry friends remain safe and healthy.

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