Are Philodendrons Poisonous To Cats. Eating them can cause burning and swelling of lips, tongue, and throat, plus vomiting and diarrhea. Hydrangea shrubs contain a toxin similar to cyanide and can quickly lead to oxygen deprivation and death.;
Philodendron should not be consumed by animals or humans. Chewing or biting into this plant will release these crystals causing tissue penetration and irritation the mouth and gi tract. Dieffenbachia contains a chemical that is a poisonous deterrent to animals.
Learn to identify plants that are dangerous for your cat.
Other sources accept different numbers. Is heart leaf philodendron poisonous to cats; Lee discusses the dangers posed to cats by the philodendron plant and offers tips for keeping cats away. Dieffenbachia (commonly known as dumb cane, tropic snow, and exotica) is toxic to dogs and cats.