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Monstera

Monstera deliciosa

Toxicity: ⚠️ MODERATE TOXICITY – ORAL IRRITATION

Monstera

Contains insoluble calcium oxalate crystals that cause intense burning and irritation of the mouth, tongue, and lips in cats. While rarely fatal, it causes significant discomfort.

Also known as:

  • Swiss Cheese Plant
  • Split-Leaf Philodendron
  • Mexican Breadfruit

Symptoms of poisoning:

  • Pawing at mouth
  • Excessive drooling
  • Difficulty swallowing
  • Vomiting
  • Oral swelling

What to do:

Mild to moderate emergency—seek veterinary care.

  1. Rinse your cat’s mouth gently with water (do not force).
  2. Offer a small amount of milk or tuna water to soothe irritation.
  3. Call your vet for advice—most cases resolve with supportive care.
  4. Watch for breathing difficulty (rare but serious).

💡 Pro tip: Keep Monsteras on high shelves—they’re climbers and love to drape!

Safe alternatives:

  • Pilea peperomioides (Chinese Money Plant)
  • Ficus elastica 'Ruby' (non-toxic variegated rubber plant)
  • Cast Iron Plant (Aspidistra elatior)
  • Areca Palm

Sources:

  • ASPCA Toxic and Non-Toxic Plants Database
  • Cornell University College of Veterinary Medicine

View on ASPCA.org

⚠️ Disclaimer: PawSafePlants provides general educational information only. This content is not veterinary advice. If your cat has been exposed to any plant, contact a licensed veterinarian or the ASPCA Animal Poison Control Center immediately. We do not guarantee the accuracy, completeness, or timeliness of this information. Use at your own risk.

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