If you share your home with a cat or a dog, "pet-friendly houseplant" lists are everywhere — and a worrying number of them are wrong. We've seen genuinely toxic plants waved through as safe, which is the sort of mistake that ends in a frightened pet and an emergency vet bill. So we did the boring, important thing: we checked every plant here directly against the ASPCA's Toxic and Non-Toxic Plants database. Below are seven houseplants that really are safe — each one confirmed non-toxic to both cats and dogs — plus an honest word on what "non-toxic" does and doesn't mean.
01The seven we can stand behind
- Spider plant (Chlorophytum comosum) — Almost impossible to kill, happy in bright or middling light, and it throws out baby plantlets you can pot up for free. The ASPCA lists it as non-toxic to cats and dogs. See the spider plant guide.
- Parlour palm (Chamaedorea elegans) — A slow, elegant little palm that copes with low light and dry indoor air better than most. Confirmed non-toxic to cats and dogs. See the parlour palm guide.
- Boston fern (Nephrolepis exaltata) — Lush and feathery, and it loves the humidity of a bathroom or kitchen. Non-toxic to both cats and dogs. See the Boston fern guide.
- Calathea / prayer plant (Calathea spp.) — Grown for patterned leaves that fold up at night. It asks for warmth and steady moisture, but rewards you — and it's non-toxic to cats and dogs. See the calathea guide.
- Peperomia (Peperomia obtusifolia and its relatives) — Compact, forgiving, and available in dozens of leaf shapes. A brilliant desk or shelf plant, and non-toxic to cats and dogs. See the peperomia guide.
- Moth orchid (Phalaenopsis) — The supermarket orchid, far tougher than it looks; the blooms can last months on a bright windowsill. Non-toxic to cats and dogs. See the moth orchid guide.
- Ponytail palm (Beaucarnea recurvata) — Not really a palm at all, but a drought-tolerant succulent with a swollen, water-storing base. Ignore it for weeks and it thrives. Non-toxic to cats and dogs. See the ponytail palm guide.
02Non-toxic doesn't mean nibble-proof
Here's the honest bit. "Non-toxic" on the ASPCA database means a plant won't poison your pet — not that it's a sensible snack. A cat that shears the tips off a spider plant, or a dog that digs up a peperomia, can still end up with a mild tummy upset: some drooling, a bit of vomiting, a skipped meal. Fibrous leaves and potting compost simply aren't designed to be eaten. Non-toxic buys you peace of mind against real poisoning; it doesn't replace keeping plants, soil and fallen leaves out of a determined pet's reach. If a particular plant is a magnet for your particular animal, move it up high or give it a room they can't get into.
03The common ones to think twice about
Plenty of the internet's most-recommended houseplants are mildly toxic to cats and dogs, and it's worth knowing which. The aroids — pothos, peace lily, monstera and the ZZ plant — all contain insoluble calcium oxalate crystals. Chewed, they release needle-like raphides that sting the mouth, causing drooling, pawing at the face and sometimes vomiting. The snake plant works differently: its saponins bring on nausea, vomiting and diarrhoea.
None of these is in the same league as a true lily, which can cause fatal kidney failure in cats. Reactions to this group are usually mild, unpleasant and self-limiting — the burning taste tends to stop most pets after a single bite. But "mild" still means a miserable animal and possibly a vet trip, so if you love these plants, keep them genuinely out of reach rather than writing them off.
04Our approach: species and route, not just "toxic or not"
We don't treat a plant as simply "safe" or "banned". What matters is the species (verified, not guessed) and the route — how likely your specific pet is to actually reach and eat it. A confirmed non-toxic plant on a low shelf beats a toxic one you're relying on a cat to ignore. Get the species right first; then manage the access.
How we checked this
Every care and safety claim on this page is verified against horticultural and veterinary sources.
Sources: ASPCA — Spider plant · ASPCA — Parlour palm · ASPCA — Boston fern · ASPCA — Calathea (rattlesnake plant) · ASPCA — Peperomia · ASPCA — Moth orchid · ASPCA — Ponytail palm · ASPCA — Golden pothos · ASPCA — Peace lily · ASPCA — Snake plant
Checked 29 July 2026. If our advice ever conflicts with the ASPCA, believe them and tell us.