Is Philodendron Toxic to Cats?
Also known as: Heartleaf Philodendron, Philodendron hederaceum · Philodendron hederaceum
What makes it toxic
Insoluble calcium oxalate crystals throughout leaves, stems and roots. When chewed, the needle crystals pierce the mouth, tongue and throat tissue.
Warning signs to watch for
Instant drooling, mouth pain, pawing at the face, vomiting and refusing food or water for several hours.
What to do if your cat eats it
Rinse the mouth with water, remove any vine material and offer water or a little milk. Call your vet if drooling and vomiting continue past a few hours or breathing looks labored.
Common questions
Which is worse for a cat, philodendron or a true lily?
Philodendron is painful but temporary; a true lily can cause fatal kidney failure from a tiny lick. Never confuse the two families.
Are all philodendron varieties toxic?
Yes — heartleaf, Brasil, selloum, moonlight and every other cultivar carry the same crystals.
How do I keep a trailing philodendron with a cat?
Hang it well above reach — trailing vines dangle right at cat height otherwise. If the cat is a committed climber, choose a non-toxic plant.
More plants checked for cats
This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate something concerning, contact your veterinarian or a pet poison hotline right away. Checking what your pet can eat? Visit our sister site SafeOrToxic.