Is Heartleaf Philodendron Toxic to Dogs and Cats? (2026)
Philodendron hederaceum
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Quick facts
| Toxic to dogs | Yes |
|---|---|
| Toxic to cats | Yes |
| Toxic to horses | Yes |
| Toxic component | Insoluble calcium oxalate crystals |
| Onset of symptoms | Within minutes of chewing |
| Indoor / outdoor | indoor |
If your pet ate this plant
Both lines are staffed 24/7. A consultation fee applies to each. Do not wait for symptoms to appear before calling.
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Symptoms in dogs
- Oral pain
- Drooling
- Vomiting
- Difficulty swallowing
Symptoms in cats
- Oral pain
- Drooling
- Vomiting
- Pawing at mouth
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What to do
Offer water to help rinse remaining crystals from the mouth. Most cases resolve with supportive care at home; seek vet care if swelling of the mouth or throat develops.
Toxic component and mechanism
The toxic component in Heartleaf Philodendron is insoluble calcium oxalate crystals.
What makes this plant different
The most commonly sold Philodendron species, prized for its easy care and trailing habit — its oxalate-crystal toxicity is mild and consistent with the rest of the Philodendron genus.
Plant identification
- Scientific name
- Philodendron hederaceum
- Family
- Araceae
- Also known as
- Heartleaf Philodendron, Cordatum, Sweetheart Plant
- Typically found
- indoor
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Last verified: July 2, 2026 · Cross-referenced with ASPCA Animal Poison Control