Is Tree Philodendron Toxic to Dogs and Cats? (2026)
Philodendron selloum
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Quick facts
| Toxic to dogs | Yes |
|---|---|
| Toxic to cats | Yes |
| Toxic to horses | No |
| 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 Tree Philodendron is insoluble calcium oxalate crystals.
What makes this plant different
A larger-growing Philodendron species popular in offices and atriums for its architectural size — the mild oxalate toxicity is the same as its smaller houseplant relatives, just scaled to a bigger plant.
Plant identification
- Scientific name
- Philodendron selloum
- Family
- Araceae
- Also known as
- Tree Philodendron
- Typically found
- indoor
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Last verified: July 2, 2026 · Cross-referenced with ASPCA Animal Poison Control