Monstera plants are toxic to cats due to the presence of calcium oxalate crystals in almost all parts of the plant, including stems, leaves, roots, and unripe fruit. These crystals can cause oral irritation, swelling of the mouth, lips, or throat, excessive drooling, vomiting, difficulty swallowing, and loss of appetite if a cat ingests any part of the plant. While ingestion is not typically deadly, it can be very uncomfortable and may require veterinary attention, especially if large quantities are consumed or severe symptoms appear. It is best to keep Monstera plants out of reach of cats to prevent any harmful effects.
Why Monstera Is Toxic to Cats
The toxic element in Monstera is calcium oxalate crystals, which act like tiny sharp needles causing irritation or micro-cuts in the tissues of the mouth, throat, and digestive system. This irritant discourages animals from eating the plant further and is a defense mechanism of the plant.
Symptoms of Monstera Toxicity in Cats
- Pawing at or scratching the mouth or face due to irritation
- Swelling in the mouth, lips, tongue, or throat
- Drooling excessively
- Vomiting and nausea
- Difficulty swallowing or loss of appetite
In severe cases where throat swelling restricts breathing, immediate veterinary care is essential.
Safety Recommendations
- Keep Monstera plants out of reach from cats
- If ingestion occurs, rinse the cat's mouth with water and encourage drinking water to flush toxins
- Seek veterinary care if symptoms worsen or do not improve quickly
Monstera plants are beautiful but should be carefully managed in homes with cats to prevent accidental poisoning.
