The Monstera plant (Monstera deliciosa) is a trendy indoor plant with big, unique leaves full of natural holes. It’s easy to care for, making it a favorite for plant lovers. But pet owners should know that Monstera plants are toxic to cats. Cats are curious and may chew on plants, which can be risky. This guide explains why Monstera is harmful, symptoms to watch for, and how to keep your pets safe while enjoying greenery.
Is Monstera Toxic to Cats?
Yes, Monstera plants are toxic to cats. Many sources, including vets and plant experts, confirm this. Other names for Monstera include Swiss Cheese Plant, Cutleaf Philodendron, Hurricane Plant, Ceriman, and Mexican Breadfruit. Knowing these names helps pet owners identify the plant.
The American Society for the Prevention of Cruelty to Animals (ASPCA) lists Monstera as toxic to cats. Eating it can cause health issues.
Why Is Monstera Toxic?
Monstera plants contain tiny, sharp calcium oxalate crystals. These are in the leaves, stems, and roots. When a cat bites the plant, the crystals irritate the mouth, tongue, throat, and stomach. This causes pain, stopping cats from eating too much of it.
Monstera fruit is safe when ripe, but indoor Monsteras rarely produce fruit. Unripe fruit still has calcium oxalate, which can harm cats.
Symptoms of Monstera Poisoning in Cats
If a cat chews on Monstera, it may show these symptoms:
- Mouth irritation – Pawing at the mouth, excessive licking, discomfort.
- Burning sensation – Pain in the mouth, lips, and tongue.
- Drooling – Too much saliva due to irritation.
- Vomiting – The body tries to remove the plant.
- Difficulty swallowing – Swelling and pain in the throat.
- Loss of appetite – Eating becomes painful.
- Breathing problems (rare) – Throat swelling may cause trouble breathing.
- Skin irritation (rare) – Contact with sap may cause mild irritation.
Most cases are not severe, and cats usually stop eating it due to pain.
What to Do If Your Cat Eats Monstera
If you think your cat chewed Monstera, do this right away:
- Remove plant bits – Take any leaves or stems from your cat’s mouth.
- Rinse the mouth – Use clean water to wash away plant particles.
- Offer water – Encourage drinking to help flush toxins.
- Watch symptoms – Look for drooling, vomiting, or trouble breathing.
- Call the vet – Even mild symptoms should be checked.
For emergencies, contact a vet or pet poison hotline:
- ASPCA Animal Poison Control Center: 888-426-4435
- Pet Poison Helpline: 855-764-7661 (may charge a fee)
How to Keep Your Cat Safe
Love Monstera but have a cat? Try these tips:
- Keep plants out of reach – Use high shelves, hanging baskets, or separate rooms.
- Clean up fallen leaves – Cats may chew them.
- Use barriers – Cover soil with stones or use enclosed plant stands.
- Try deterrents – Bitter sprays or citrus scents keep cats away.
- Provide safe plants – Offer cat grass or catnip instead.
- Engage your cat – Bored cats chew more. Give toys, scratching posts, and playtime.
- Use artificial plants – Fake plants look great and are pet-safe.
Safe Plant Alternatives
Want pet-friendly plants? Try these:
| Plant Name | Scientific Name | Light Needs | Water Needs | Features |
|---|---|---|---|---|
| Spider Plant | Chlorophytum comosum | Low-bright | Let soil dry | Air-purifying, easy care |
| Cat Grass | Dactylis glomerata | Bright | Keep soil moist | Safe for cats to chew |
| Catnip | Nepeta cataria | Sun-shade | Slightly dry soil | Fun for cats |
| Prayer Plant | Maranta leuconeura | Low-medium | Keep soil moist | Beautiful leaves |
| Calathea | Calathea spp. | Low-bright | Keep soil moist | Many colors |
| Peperomia | Peperomia spp. | Low-bright | Slightly dry soil | Unique textures |
| African Violet | Saintpaulia ionantha | Bright | Water from bottom | Pretty flowers |
| Swedish Ivy | Plectranthus verticillatus | Medium | Slightly dry soil | Trailing stems |
| Bamboo Palm | Chamaedorea elegans | Low-bright | Keep soil moist | Air-purifying, elegant |
| Zebra Plant | Haworthia fasciata | Bright | Dry soil between | Small and sculptural |
These allow you to enjoy greenery without risking your cat’s health.
Why Do Cats Chew Plants?
Cats chew plants for many reasons:
- Curiosity – Especially common in kittens.
- Boredom – Lack of stimulation leads to chewing.
- Grazing instinct – Some cats chew greenery to aid digestion.
- Nutritional needs – Rare, but possible.
Giving safe plants and engaging activities helps redirect this behavior.
Conclusion
Monstera plants are toxic to cats due to calcium oxalate crystals, which cause mouth pain, drooling, and vomiting. While not life-threatening, it’s uncomfortable for cats. Keep plants out of reach, use deterrents, and offer safe alternatives like cat grass. If your cat eats Monstera, act quickly and call a vet. With the right precautions, you can enjoy beautiful plants while keeping your cat safe and happy.