Last Updated on May 4, 2026 by admin
The aluminum plant, also called watermelon plant or Pilea cadierei, is listed by the ASPCA as non-toxic to cats. That means it is not in the same risk category as lilies, sago palm, pothos, or other genuinely dangerous houseplants.
That does not mean cats should eat it as a snack. Any houseplant can cause vomiting or diarrhea if a cat chews enough leaves, and plant identification mistakes are common. If your cat is sick, treat the symptoms seriously and call your veterinarian or a pet poison hotline.
Is aluminum plant toxic to cats?
For the common houseplant sold as aluminum plant or watermelon plant, the key ID is Pilea cadierei. ASPCA Animal Poison Control lists this plant as non-toxic to cats, dogs, and horses.
The old claim that aluminum plant causes kidney failure, seizures, or death in cats is not supported by that ASPCA listing. Those serious warnings belong to other plant or toxin exposures, not to a correctly identified Pilea cadierei.
Why a non-toxic plant can still cause symptoms
Non-toxic does not mean digestible. Cats may vomit after eating leaves because the plant fiber irritates the stomach. A cat may also drool, gag, have soft stool, or lose interest in food for a short time after chewing a plant.
Call your veterinarian promptly if symptoms are repeated, severe, or paired with lethargy, hiding, weakness, blood, trouble breathing, tremors, or collapse. Those signs may mean the plant was misidentified or that something else is going on.
What to do if your cat ate aluminum plant
- Move the plant away from your cat.
- Remove plant bits from the mouth or fur if you can do so safely.
- Take a clear photo of the plant and save a leaf sample for identification.
- Watch for vomiting, diarrhea, drooling, appetite loss, or behavior changes.
- Call your veterinarian, ASPCA Animal Poison Control, or Pet Poison Helpline if symptoms appear or you are unsure of the plant ID.
Do not induce vomiting at home. Do not give activated charcoal, milk, oils, salt water, hydrogen peroxide, or any medication unless a veterinarian or poison-control professional tells you to. Those treatments can be risky when used without case-specific guidance.
How to prevent plant chewing
Even cat-safe plants are best kept away from habitual chewers. Place the aluminum plant on a high shelf, in a hanging planter, or in a room your cat cannot access. Sweep up dropped leaves after pruning or repotting.
Give your cat safer outlets: daily play, puzzle feeders, scratchers, and cat grass if your veterinarian says it is appropriate. If your cat keeps chewing houseplants, check whether boredom, nausea, dental pain, or stress may be part of the pattern.
Do not confuse aluminum plant with other plants
Common names are messy. Confirm the scientific name before deciding a plant is safe. Aluminum plant usually refers to Pilea cadierei, but a store label or online listing can be wrong.
For comparison, our ZZ plant and cat safety guide covers a plant that can irritate the mouth and stomach. Our guides to petunias and cats and peonies and cats show why checking the exact plant matters before assuming either danger or safety.
When to call poison control
Call a veterinary professional right away if you cannot identify the plant, if your cat ate a large amount, if your cat is young or medically fragile, or if any concerning symptoms appear. PetMD’s plant poisoning guidance emphasizes identifying the plant and contacting a veterinarian or poison-control service when the plant is unknown or symptoms occur.
Bring the plant name, a photo, and any chewed material or vomit sample if your veterinarian requests it. Accurate identification prevents both panic over non-toxic plants and dangerous underreaction to truly toxic ones.
Bottom line
Aluminum plant, Pilea cadierei, is considered non-toxic to cats by ASPCA. Keep it out of reach if your cat chews plants, but do not treat a nibble as an automatic kidney-failure emergency. If your cat vomits repeatedly, seems unwell, or the plant ID is uncertain, call your veterinarian or pet poison control.
Sources checked: ASPCA’s Aluminum Plant entry, ASPCA’s toxic and non-toxic plant list for cats, PetMD’s veterinarian-reviewed guide to poisonous plants for cats, and University of Nebraska-Lincoln Extension’s houseplant toxicity reference.