Last updated on November 14th, 2025 at 06:41 am
Common Indoor Plants That Are Poisonous to Cats and Dogs
Indoor plants that are toxic to pets. Houseplants bring life, beauty, and cleaner air into our homes — but some popular indoor varieties can be toxic to cats and dogs. Whether you’re a seasoned gardener or a beginner, knowing which plants are harmful can help you keep your furry friends safe. Here are ten common houseplants that may cause problems for pets.
1. Snake Plant (Sansevieria trifasciata)
The classic snake plant is popular for its low-maintenance care, but it contains saponins, which can cause vomiting, nausea, and diarrhea in pets. Keep this plant on a high shelf or swap it for a pet-safe spider plant.
2. Aloe Vera
Although famous for its soothing gel, Aloe Vera contains compounds like saponins and anthraquinones that are toxic to pets. Ingesting the leaves can lead to vomiting, lethargy, and tremors.
3. Peace Lily (Spathiphyllum)
This elegant plant contains calcium oxalate crystals that can cause mouth irritation, drooling, and difficulty swallowing when chewed by cats or dogs.
4. Pothos (Epipremnum aureum)
Also known as Devil’s Ivy, this vining plant is easy to grow but harmful to pets. It can cause oral irritation, drooling, and vomiting if ingested.
5. Philodendron
Another favorite for lush foliage, philodendrons contain calcium oxalates that irritate the mouth and throat. Pets may experience burning sensations, drooling, or swelling.
6. Dieffenbachia (Dumb Cane)
This tropical plant’s sap can cause severe mouth irritation, swelling, and drooling. Even small bites can lead to discomfort.
7. Sago Palm (Cycas revoluta)
Every part of the Sago Palm — especially its seeds — contains cycasin, a toxin that may cause vomiting, seizures, or liver failure. It’s one of the most dangerous plants for pets.
8. ZZ Plant (Zamioculcas zamiifolia)
The trendy ZZ Plant is loved for its durability but contains calcium oxalates that can lead to mouth irritation and stomach upset.
9. Jade Plant (Crassula ovata)
Easy to grow and common in homes, the Jade Plant can cause vomiting and lethargy if eaten by cats or dogs.
10. Asparagus Fern (Asparagus densiflorus)
This delicate fern contains sapogenins, which may cause vomiting, diarrhea, and skin irritation when pets come into contact with it.
Pet-Safe Alternatives
For pet-friendly greenery, try Areca Palm, Spider Plant, Boston Fern, or Calathea varieties. These plants are safe for cats and dogs and thrive indoors with minimal care.
Infographic: Indoor plants that are toxic to pets
Here are some plants that are Pet-Safe indoors.
Always research before bringing new plants home. A little prevention goes a long way toward keeping your pets healthy and your home beautiful.
Visit the ASPCA.org Website for more information on Toxic and non-toxic plants for dogs and cats
Visit Guzman’s Greenhouse for more indoor plant care tips, Southwest gardening advice, and pet-safe plant ideas!
Greenhouse Manager, Master Gardener, and Webmaster.
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