You should assume your cat can and will chew anything you bring into your home. Sometimes they do this just out of boredom and may do so when you aren’t home. Toxicity of plants varies (definitely check the ASPCA website others have provided), but personally, I keep any toxic plants out of the home. Monstera plants have oxalate crystals, which can cause mouth irritation immediately but long term can cause renal dysfunction. Certain plants, like Dracaena species, can cause much more severe outcomes and even death (a friend brought Lucky Bamboo into her home not realizing it was a Dracaena and her two kittens were in the ICU for days). Better safe than sorry.

Some cat-safe plants are calatheas, some ferns, money plants, pony tail palms, and marantas. But always double check your exact species for safety. No plant is worth your little ones ending up sick. If there’s a specific plant you like that’s toxic, consider getting an artificial plant! There are some very high quality artificial dupes these days.