PupkeeperToxic
Is philodendron toxic to dogs?
Toxic but rarely serious. Chewing philodendron releases needle-like crystals that make the mouth sore and swollen and cause drooling.
If your dog ate or touched this, call your vet or a pet poison line now
United States
Poison lines in other countries: United Kingdom, Australia, Canada, New Zealand
What to do now
- Call your vet or a pet poison line now.
- Take the plant away and rinse your dog's mouth with water.
- Go to a vet hospital right away if your dog has trouble swallowing or breathing.
Don't
- Don't make your dog vomit unless a vet tells you to.
- Don't give milk, oil, salt or other home remedies unless a vet tells you to.
Signs to watch for
- Pawing at the mouth or head shaking
- Pain and swelling of the mouth, tongue and lips
- Heavy drooling
- Vomiting
- Trouble swallowing
- Loss of appetite
Why
Its leaves and stems contain insoluble calcium oxalate crystals that are released when chewed. Many cases can be handled at home with advice, and lasting harm is not expected.
Sources
- ASPCA Animal Poison Control: Heartleaf Philodendron
- ASPCA: These Houseplants Can Cause Trouble for Your Pets
- Pet Poison Helpline: Toxic Plants to Pets (first aid)
Guide reviewed 9 October 2026.
General information from the sources above, not a diagnosis. When in doubt, call your vet.