Is Alocasia Toxic to Cats and Dogs?
Yes, alocasia is toxic to cats and dogs. This popular houseplant, also known by the common name Elephant’s Ear, contains substances that can cause a painful reaction if a pet chews on or bites any part of it. The plant’s toxicity affects cats, dogs, and horses, according to the American Society for the Prevention of Cruelty to Animals (ASPCA).
Understanding the specific risks associated with alocasia can help pet owners create a safer home environment. The plant is part of the Araceae family, a group known for containing compounds that irritate tissues. While often beautiful and striking, alocasia requires careful placement in households with curious pets.
Alocasia: what the ASPCA database lists
| ASPCA entry | Alocasia |
|---|---|
| Other common names | Elephant’s Ear |
| Scientific name | Alocasia spp. |
| 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 alocasia
The ASPCA identifies plants from the Alocasia spp. group as toxic to cats, dogs, and horses. The reason for this classification is the presence of toxic principles known as insoluble calcium oxalates. These are microscopic, needle-shaped crystals found within the plant’s cells.
When a pet bites or chews the leaves or stems, these crystals are released. They physically embed themselves into the soft tissues of the mouth, tongue, and throat, causing immediate discomfort and irritation. The ASPCA lists the following clinical signs associated with alocasia exposure:
- Oral irritation
- Pain and swelling of the mouth, tongue, and lips
- Excessive drooling
- Vomiting (not in horses)
- Difficulty swallowing
What this means in a home with pets
The primary danger of alocasia comes from the intense and immediate pain caused by the calcium oxalate crystals. A pet does not need to swallow a large piece of the plant to feel its effects. A single bite or some determined chewing can be enough to trigger a painful reaction. This discomfort often stops pets from consuming a significant amount of the plant material, which can limit more severe internal problems.
However, the swelling of the mouth and throat can be very distressing for an animal. Difficulty swallowing is a serious sign that requires prompt attention. A pet that has chewed on alocasia may paw at its mouth, refuse to eat, or drool heavily due to the pain and irritation. Vomiting may also occur as the body attempts to expel the irritating substance.
Keeping cats and dogs and this plant apart
The most effective way to prevent a toxic exposure is to ensure pets cannot access the alocasia plant at all. Place the plant in a room that is off-limits to your cats and dogs. Using high shelves or hanging baskets may work for some dogs, but these methods are often not a reliable deterrent for cats that can climb or jump.
Supervise your pets when they are around any houseplants. If you bring a new alocasia home, monitor your pet’s interactions with it closely. Regularly check the plant and the surrounding floor for fallen leaves or pieces that a pet could find and chew. Providing safe and engaging toys can also help redirect a pet’s curiosity away from potentially harmful plants.
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 pet has chewed or ingested any part of an alocasia plant, contact your veterinarian or the ASPCA Animal Poison Control Center at (888) 426-4435 immediately. A consultation fee may apply. Note the time of exposure and how much of the plant you believe was eaten. Do not attempt to induce vomiting or provide any home remedies unless specifically instructed to do so by a veterinary professional.
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
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- 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.