Monstera: is it toxic to cats and dogs?

Pet safety summary

ASPCA lists Monstera deliciosa as toxic to cats and dogs because of insoluble calcium oxalates, which can cause intense oral irritation, drooling, vomiting, and difficulty swallowing.

This page covers Monstera deliciosa, also called Swiss cheese plant, ceriman, Mexican breadfruit, or cutleaf philodendron in the ASPCA database.

Cats

Cat conclusion: ASPCA Animal Poison Control identifies Monstera as toxic to cats. Keep the plant out of reach and contact a veterinarian or poison-control service if exposure is suspected.

Dogs

Dog conclusion: ASPCA Animal Poison Control identifies Monstera as toxic to dogs. Keep the plant out of reach and contact a veterinarian or poison-control service if exposure is suspected.

Clinical signs reported by the source

• oral irritation
• intense burning and irritation of the mouth, tongue, and lips
• excessive drooling
• vomiting
• difficulty swallowing

What to do if your pet ate it

Remove access to the plant. Save the plant label or a clear photo, note the part and approximate amount eaten, and contact your veterinarian or a poison-control service when the source identifies a toxicity risk. Do not induce vomiting unless a veterinary professional specifically tells you to.

Evidence and identity

Scientific name used on this page: Monstera deliciosa

Source scientific name: Monstera deliciosa

Source notes: Insoluble calcium oxalates

Source

ASPCA Animal Poison Control plant safety entry for Monstera

Source reviewed for Batch 30 on August 3, 2026.

Emergency contacts

ASPCA Animal Poison Control: (888) 426-4435

Pet Poison Helpline: (855) 764-7661

If your pet is having trouble breathing, collapsing, having seizures, or otherwise appears critically ill, seek emergency veterinary care immediately.