Is Caladium Toxic to Cats and Dogs?
Yes, the Caladium plant is toxic to cats and dogs. All parts of the plant contain insoluble calcium oxalate crystals that can cause immediate and painful irritation if a pet chews or bites them.
Known by many other names, including Elephant’s Ears, Angel-Wings, and Mother-in-law Plant, this houseplant presents a risk to any curious pet that might investigate it with its mouth. The scientific name for the plant is Caladium hortulanum.
Caladium: what the ASPCA database lists
| ASPCA entry | Caladium |
|---|---|
| Other common names | Malanga, Elephant’s Ears, Stoplight, Seagull, Mother-in-law Plant, Pink Cloud, Texas Wonder, Angel-Wings, Exposition, Candidum, Fancy-leaved Caladium |
| Scientific name | Caladium hortulanum |
| Family | Araceae |
| Toxic to | Toxic to Dogs, Toxic to Cats, Toxic to Horses |
| Non-toxic to | None listed |
| Toxic principles | Insoluble calcium oxalates |
| Clinical signs listed | Oral irritation, pain and swelling of mouth, tongue and lips, excessive drooling, vomiting (not horses), difficulty swallowing |
What the ASPCA lists for caladium
The American Society for the Prevention of Cruelty to Animals (ASPCA) database lists Caladium as toxic to cats, dogs, and horses. The toxic components are identified as insoluble calcium oxalates. These are microscopic, needle-shaped crystals that are bundled together inside the plant’s cells.
When an animal chews the plant, these bundles are released and embed themselves in the soft tissues of the mouth, tongue, and throat. This physical irritation, rather than a chemical poisoning, is what causes the symptoms. The ASPCA lists the following clinical signs associated with Caladium ingestion:
- Oral irritation
- Pain and swelling of the mouth, tongue, and lips
- Excessive drooling
- Vomiting (in cats and dogs)
- Difficulty swallowing
What this means for a pet in your home
A cat or dog that bites into a Caladium leaf, stem, or bulb will likely feel immediate discomfort. The sharp crystals cause a painful burning sensation in the mouth. This initial pain often stops pets from eating a large amount of the plant, which is a fortunate protective reaction.
You might observe your pet pawing at its face, drooling much more than usual, or showing reluctance to eat or drink due to the soreness. Swelling of the lips and tongue can be visible, and in some cases, this swelling can make it difficult for the animal to swallow properly. Vomiting can also occur as a result of the irritation.
Keeping cats, dogs, and this plant apart
Because any part of the Caladium plant can cause a painful reaction, the only safe approach is to prevent access entirely. Pet owners should keep these plants in rooms that are completely off-limits to pets. Placing them on high shelves or ledges may not be enough to deter a determined cat.
Supervision is key when pets are in a space where a Caladium is present. Be mindful of fallen leaves, as these still contain the toxic oxalate crystals. If you are repotting the plant, ensure your pet cannot access the plant parts, including the bulbs which are also toxic. Always check the labels of any new plants you bring into your home to ensure they are safe for your animals.
When to call your vet
If your pet chewed or ate part of this plant, call your veterinarian or an animal poison control line. Note which plant and which part, how much may be gone and when, and take a photo or a piece of the plant with you.
If you suspect your cat or dog has chewed or eaten any part of a Caladium plant, contact your veterinarian or the ASPCA Animal Poison Control Center immediately. Note the time of exposure and try to estimate how much of the plant was ingested. Do not attempt to induce vomiting or provide any home remedies without professional veterinary guidance.
Emergency signs: go now
- Collapse, fainting or severe weakness
- Seizures, tremors or trouble standing
- Trouble breathing or blue, gray or very pale gums
- Repeated vomiting or retching, or a swollen, painful belly
- Any known contact with a substance listed as toxic, even before signs appear
Book an appointment soon
- Vomiting or diarrhea that lasts or keeps coming back
- Not eating or drinking, or drinking much more than usual
- Drooling, pawing at the mouth or a swollen face
- Lethargy, hiding or acting unlike themselves
ASPCA Animal Poison Control Center: (888) 426-4435 (a consultation fee may apply). Your own vet or nearest emergency clinic is always a good first call.
Sources
Last checked October 21, 2026. Listings and guidance can change; your veterinarian knows your pet’s health history.