Safe / non-toxic
Good news — spider plants are non-toxic to dogs and cats. They’re one of the best pet-safe houseplants, though cats may be oddly drawn to nibbling the leaves.
Spider plants (Chlorophytum comosum) appear on every reputable list of pet-safe houseplants — they do not contain the calcium oxalate crystals or saponins that make so many common plants toxic. They are hardy, easy to grow, and reassuring for nervous plant-owning pet parents. One quirk: some cats are strangely attracted to the dangly leaves and will chew them, possibly because the plant has a mild compound cats find mildly stimulating, a bit like a gentle catnip effect.
Safe for both dogs and cats. The only practical issue is a determined cat chewing the leaves, which can cause a little vomiting simply from eating plant material — not from toxicity.
No action needed for normal exposure — enjoy your spider plant. If a cat habitually strips the leaves and occasionally vomits plant matter, simply move it out of reach and offer a pot of cat grass or catnip as a legal chewing outlet instead.
Related: Can cats eat catnip? · Is pothos toxic? · Is aloe vera toxic?
General information, not veterinary advice. If your pet has eaten a toxic plant or shows symptoms, contact your vet or a pet poison helpline immediately. Full disclaimer.