Is Heartleaf Philodendron Toxic to Dogs?

Yes — Heartleaf Philodendron is moderately toxic to dogs

The Heartleaf Philodendron is one of the most popular trailing plants for beginners. Unfortunately, like all philodendrons, it contains calcium oxalate crystals that cause immediate oral irritation and swelling when chewed.

Symptoms in Dogs

If your dog eats Heartleaf Philodendron, watch for these symptoms (onset: Immediate):

  • Oral pain
  • Drooling
  • Pawing at mouth
  • Swelling of lips and tongue
  • Difficulty swallowing
  • Vomiting

What To Do

Rinse mouth thoroughly. Offer cold water or milk. Monitor breathing — seek emergency care if swelling appears to obstruct airways.

Dog-Safe Alternatives to Heartleaf Philodendron

✓ Spider Plant ✓ Boston Fern ✓ String of Hearts

Quick Facts

Philodendron hederaceum

Yes (moderate)

Insoluble calcium oxalate crystals

leaves, stems

Sources: ASPCA Animal Poison Control Center, Pet Poison Helpline. View full Heartleaf Philodendron toxicity profile.