If you have a cat and a spider plant, your cat has probably tried to eat your spider plant. This is universal. It is also fine. The ASPCA classifies spider plants (Chlorophytum comosum) as non-toxic to cats, and a cat that chews on the trailing leaves is not being poisoned.

But there is an answer to why your cat is so fixated on this specific plant, and it is not a coincidence.

Quick answer

Spider plants are safe for cats. The ASPCA’s non-toxic plant list classifies spider plant (Chlorophytum comosum) as non-toxic to both cats and dogs. A cat that chews spider plant leaves will not be poisoned. If your cat eats a large quantity, mild stomach upset (a single vomit, maybe loose stool) is possible and resolves on its own. The plant itself is one of the safest, easiest-to-grow houseplants you can keep in a cat household.

The interesting part: spider plants contain mild compounds that affect cats similarly to a weaker version of catnip, which is why your cat is so drawn to it. More on that below.

Why cats are obsessed with spider plants

Spider plants contain chemical compounds that produce a mild psychoactive effect in some cats, similar to (but weaker than) the response cats have to catnip. This is what makes the trailing leaves so appealing. Your cat is not just chewing a leaf because it is there. Your cat is, in a small way, getting a buzz.

A few important notes:

  • The active compounds in spider plant are not the same as nepetalactone (the catnip compound). They are weaker. The effect on a sensitive cat is more like mild interest and chewing, not the rolling, drooling, full-body catnip response.
  • The response is genetic, the same way catnip response is. About 70 percent of cats respond to catnip; spider plant response varies similarly. If your cat ignores catnip, they may still be drawn to spider plant. If they respond to both, the spider plant response will be milder.
  • The effect is short-lived and harmless. Your cat is not at risk from the compounds themselves. They are at most-risk of mild stomach upset from eating too much plant material at once, the same way a person feels sick after eating too much of any vegetable they are not used to.

So when you see your cat dangling from a hanging planter trying to reach a spider plant leaf, what you are seeing is normal cat behavior toward a plant that is mildly rewarding to chew. It is annoying for the plant. It is not dangerous for the cat.

What happens if my cat eats spider plant

Most cats: nothing visible at all. A small chew here and there, a chewed-up leaf tip, a slightly damaged plant. No symptoms.

A cat that eats a meaningful amount of spider plant in one sitting: possible mild stomach upset, which usually means:

  • One vomit, often containing visible plant material
  • Possible loose stool the next day
  • Maybe a slight loss of appetite for the next meal

That is the high end of what spider plant ingestion looks like. None of it is toxicity. All of it resolves on its own within 24 hours.

What is not spider plant ingestion:

  • Repeated vomiting (more than once in 24 hours)
  • Lethargy that lasts more than a few hours
  • Refusing food across multiple meals
  • Drooling, twitching, tremors, or any neurological symptom

If your cat shows any of those after eating spider plant, the spider plant is probably not the cause. Cats also eat things you do not see them eat. Call your vet or the Pet Poison Helpline at 855-764-7661 and describe the symptoms. The helpline can usually tell you within five minutes whether your situation needs an emergency vet visit or can be watched at home.

The actual safety verdict

The ASPCA, which maintains the canonical list of plants toxic and non-toxic to pets, classifies the spider plant (Chlorophytum comosum) as non-toxic to cats and non-toxic to dogs. The classification is based on the plant’s chemistry: it does not contain calcium oxalate crystals (the irritant in pothos and philodendron), saponins (the compound in aloe vera), or any of the substances that produce true toxicity in cats.

Their database entry for spider plant is short because there is not much to flag. Non-toxic, safe, no significant interactions.

I am not a veterinarian. The information above is drawn from the ASPCA’s Animal Poison Control Center reference and the Pet Poison Helpline’s publicly available guidance. For specific concerns about your cat, call your vet, the Pet Poison Helpline (855-764-7661), or the ASPCA Animal Poison Control Center (888-426-4435).

Spider plant look-alikes to watch out for

Here is where some cat owners get into trouble. A pet store, a thrift store, or an Instagram caption labels a plant as a “spider plant” or “spider-like” and the plant is actually something else. A few of those look-alikes are genuinely toxic.

Asparagus fern (Asparagus aethiopicus, sometimes called “lace fern” or “foxtail fern”) is toxic to cats per the ASPCA. The fine, feathery foliage is sometimes mistaken for a smaller spider plant. The berries cause more serious GI upset and the plant itself can cause skin and mouth irritation.

Variegated grasses sold in nurseries, especially some ornamental striped grasses, look superficially similar to a spider plant. Most are non-toxic, but a few are not. If you cannot identify the plant by name, do not assume it is the same as a spider plant.

Inchplant or wandering jew (Tradescantia zebrina, fluminensis) has trailing leaves with stripes, vaguely spider-plant-like. ASPCA classifies several Tradescantia species as toxic to cats (causes dermatitis and GI upset). Common mistake.

The fix: when you buy a “spider plant,” confirm the scientific name on the plant tag. Chlorophytum comosum is the safe one. Anything else, look it up against the ASPCA list before bringing it home.

How to keep your spider plant alive when your cat won’t leave it alone

The plant is safe. But your cat is also actively destroying your plant. Both can be true.

Hang it high. Spider plants are made for hanging baskets. A hanging planter at six feet or higher is generally above cat-jumping range. The runners with the small “spiderettes” at the end can dangle, but as long as the dangling parts are still well above where a cat can jump, they are safe. The mistake to avoid: hanging from a high shelf or curtain rod that your cat can climb to. Hang from a ceiling hook or a high wall hook with no nearby surface to launch from.

Give your cat something legal to chew. Cat grass (oat grass, wheat grass, or a commercial cat-grass blend) provides the same general “chew something green” satisfaction that spider plants do, without the mild buzz. Many cats redirect entirely once they have their own grass tray. Place it somewhere your cat already likes to hang out.

Try a bitter-apple or citrus deterrent spray. Sprayed on the lower leaves of a spider plant, deterrent sprays discourage about half of cats. Worth trying on one leaf first to see if your cat reacts. Reapply weekly.

Accept some damage. Spider plants grow fast and forgive chewing. A few munched leaves do not hurt the plant long-term. If your cat chews the tips off and leaves the rest, the plant will keep growing. If your cat actively shreds the whole plant, hanging is the answer.

Cat-friendly redirects

The single highest-impact behavior change you can make is giving your cat their own grass.

Cat grass (typically Dactylis glomerata, oat grass, or a wheat grass blend) is sold as a kit at most pet stores and online. You sprout it in a few weeks, put the tray somewhere your cat can find it, and let them chew. ASPCA lists oat grass as non-toxic. Cats chew grass partly to help pass hairballs, partly because they enjoy it. Giving them a designated tray meets that need. See our cat grass guide for species details and step-by-step growing.

Catnip plants (Nepeta cataria) are also non-toxic and provide a stronger version of the buzz that spider plants give. If your cat responds to catnip, growing a small catnip plant in a sunny window (out of reach) and offering dried leaves as a treat will redirect a lot of the spider-plant-chewing behavior.

Both are also great gateway plants for cat owners new to indoor gardening.

When to call the vet

For routine spider plant chewing: not needed. Watch your cat, offer them grass, and move on.

For severe symptoms (repeated vomiting, lethargy that lasts more than a few hours, refusing food, neurological signs): call your vet or the Pet Poison Helpline. Even if you saw your cat eat spider plant, cats often eat other things you did not see. The helpline can rule things in or out fast.

  • Pet Poison Helpline: 855-764-7661 (around-the-clock, $85 consultation fee)
  • ASPCA Animal Poison Control Center: 888-426-4435 (around-the-clock, $95 consultation fee)
  • Your local emergency vet: look this up before you need it

A note: do not induce vomiting in a cat at home without veterinary guidance. Cats are not dogs, and the at-home methods that work for dogs (hydrogen peroxide, etc.) are not safe for cats.

FAQ

Are spider plants toxic to cats? No. The ASPCA classifies the spider plant (Chlorophytum comosum) as non-toxic to cats and dogs. A cat that chews spider plant leaves is not being poisoned, though eating a lot at once can cause mild GI upset.

What happens if my cat eats spider plant? Most cats eat a few leaves with no effect at all. A cat that eats a large amount may vomit once or have loose stool, which resolves on its own within a day. If symptoms persist or worsen, call a vet, but spider plant alone does not cause poisoning.

Why is my cat so obsessed with my spider plant? Spider plants contain mild chemical compounds that affect cats similarly to a weaker version of catnip. The effect is harmless and short-lived. About 70 percent of cats respond to catnip-like compounds; spider plants affect a similar share of cats.

Is spider plant like catnip? Sort of. Spider plants do not contain nepetalactone (the catnip compound), but they contain other mild compounds with a comparable, weaker effect. Not every cat reacts. The response is genetic.

How do I keep my cat away from my spider plant? Hang the plant at six feet or higher (with no nearby surface for your cat to launch from), give your cat their own grass tray for redirection, and try a citrus or bitter-apple deterrent spray on the leaves. Most cats lose interest once they have their own grass to chew.

Are spider plants toxic to dogs? No. The ASPCA classifies spider plants as non-toxic to dogs as well. The same notes apply: a dog that eats a large amount may have a brief stomach upset, but the plant is safe.

Sources and further reading

If you want a full curated list of plants that are safe to keep in a cat household, organized by use case (low-light, hanging, statement, easy-care, edible), see the pillar guide above.