"I'd love some houseplants, but what if my cat or dog chews on them?" If you share your home with pets, you've probably wondered about this. And it's a fair concern: many of the most popular houseplants can cause poisoning if cats or dogs eat them.
But not every houseplant is a hazard. Choose thoughtfully, and pets and plants can share the same room in perfect peace. In this article, we'll list the common houseplants to be careful with, then introduce 8 species considered relatively safe for cats and dogs — with notes on each and tips for placing them in a pet household.
Plant poisonings are more common than you'd think
In the ASPCA's (American Society for the Prevention of Cruelty to Animals) annual reports, plants consistently rank among the top causes of pet poisoning. Veterinarians regularly see cases like "my cat chewed a leaf and vomited" or "my dog ate the potting soil" — often shortly after houseplants first arrive in the home.
The toxic compounds vary by plant. The main ones are:
- Calcium oxalate crystals: found in monstera, pothos, philodendron, dieffenbachia, and others. Cause intense mouth pain, drooling, and difficulty swallowing
- Saponins: found in snake plants, aloe, and others. Cause diarrhea and vomiting
- Other plant alkaloids: some members of the lily family are especially deadly to cats (causing kidney failure)
Even "just a nibble" can be a significant dose relative to a pet's body weight. The most reliable prevention is choosing safe plants from the start for anywhere your pet can reach.
Common houseplants to be careful with
Here are the species that need the most caution in homes with pets. The point isn't "never own these" — it's to keep them out of your pet's reach, or in a separate room.
| Plant | Risk level | Example symptoms |
|---|---|---|
| Lilies (all types) | Extremely high (especially cats) | Acute kidney failure, can be fatal |
| Dieffenbachia | High | Severe mouth pain, difficulty swallowing, breathing trouble |
| Alocasia (elephant ear) | High | Intense pain from calcium oxalate |
| Pothos | Medium–high | Vomiting, drooling, mouth sores |
| Monstera | Medium | Mouth irritation, vomiting |
| Philodendron | Medium | Mouth irritation, difficulty swallowing |
| Aglaonema | Medium | Mouth irritation, vomiting |
| Peace lily (Spathiphyllum) | Medium | Mouth sores, vomiting |
| Anthurium | Medium | Mouth irritation |
| Aloe | Medium | Diarrhea, vomiting (saponins) |
| Snake plant (Sansevieria) | Low–medium | Digestive upset (saponins) |
If you already own plants on this list, there's no need to give them all away. A high shelf, a separate room, or a hanging planter — simple physical separation prevents most accidents.
8 houseplants safe for cats and dogs
Based on ASPCA data and veterinary guidance, here are 8 species considered relatively safe for cats and dogs, with notes on each and placement tips for pet households.
1. Spider plant
With its charming cascade of baby plantlets, the spider plant is the poster child of pet-safe greenery. It's hardy, forgiving of missed waterings, and easy for beginners. It's considered safe even if your cat nibbles the leaves — though some cats take a real liking to them, so keep an eye out that the long fibrous leaves don't cause digestive blockages. See the spider plant species profile for details.
2. Parlor palm
An elegant small palm that fits beautifully into a living room. It tolerates low light well, so it thrives even in north-facing rooms. Since it sits low — right at cat eye level — a spot on a shelf is safer if your pet is a determined chewer. More in the parlor palm species profile.
3. Boston fern
A classic fern with soft, feathery fronds that bring a cool, airy feel. Often praised for its air-purifying qualities, it works well in living rooms and bedrooms alike. It loves humidity, so some people keep it in the bathroom. Safe for both cats and dogs. See the Boston fern species profile.
4. Maidenhair fern
A delicate fern with beautiful fine foliage, and harmless to pets. It's a bit sensitive to dry air, so misting the leaves once or twice a week helps keep it happy. If the leaf tips tend to brown, see why houseplant leaf tips turn brown and what to do as well. Details in the maidenhair fern species profile.
5. Pilea (including Pilea peperomioides)
A photogenic favorite with round, coin-shaped leaves — you may know it as the "Chinese money plant" or "pancake plant." It readily produces baby plants, so propagating is part of the fun. Easy to grow and harmless to pets. Check the pilea species profile.
6. Peperomia
Loved for its thick, glossy leaves. It handles dry spells well — not quite snake-plant levels of tough, but a good match for anyone who tends to forget watering. Its compact size suits small apartments too. See the peperomia species profile.
7. Hoya (wax plant)
A distinctive trailing group that even produces flowers. Hoyas do beautifully in hanging planters, which keeps them well out of a pet's reach — a natural fit for pet households. More in the hoya species profile.
8. Calathea
A highly decorative species with beautifully patterned leaves. It dislikes dry air and needs regular misting and humidity care, so it's more of an intermediate-level plant — but it's harmless to pets. See the calathea species profile as well.
Tips for pets and plants living together
Even with safe plants, a few simple precautions reduce accidents further:
- Soil-eating prevention: some dogs love digging in and eating potting soil. Covering the surface with decorative stones or bark chips (mulching) helps prevent accidental ingestion
- Tip-over prevention: for plants in spots where cats climb, choose heavy pots or secure them to shelves. Knocked-over pots that shatter are a surprisingly common accident in cat households
- Zoning: keep riskier plants where pets can't reach — high shelves, hanging planters, or a separate room
- Watch new arrivals: even a normally calm pet may take a sudden interest in an unfamiliar plant. Keep an eye out for the first week
- Fertilizer counts too: solid fertilizer pellets can be eaten by cats and dogs, so bury them in the soil or use liquid fertilizer instead
What to do if your pet eats a plant
Prevention is best, but if your pet does chew on a leaf, stem, or soil, act in this order:
- Identify the plant: snap a photo on your phone, or keep the receipt or plant label — it speeds up communication with the vet
- Call your vet right away: even without symptoms, some species require early treatment. Tell them the plant name and how much was eaten
- Don't induce vomiting yourself: doing so can worsen mouth injuries or cause choking
- Note the symptoms: drooling, vomiting, lethargy, pawing at the mouth — all useful at the clinic
Keeping an emergency vet's phone number on the fridge means you can act calmly if the moment ever comes.
When you bring home a new houseplant, try entering its name on the add a plant page. Green Logs automatically tracks each plant's watering rhythm — free, right in your browser — so you can enjoy a long, peaceful life with your plants and your pets.