Elephant Ears — (c) Cheng-Tao Lin, some rights reserved (CC BY), uploaded by Cheng-Tao Lin
Photo by (c) Cheng-Tao Lin, some rights reserved (CC BY), uploaded by Cheng-Tao LiniNaturalistCC BY
Pet safety reference

Elephant Ears

Colocasia esculenta

Colocasia esculenta is a tropical perennial known for its large, heart-shaped leaves that resemble elephant ears. It contains insoluble calcium oxalate crystals that cause irritation upon contact with tissues.

Caladium esculentumCocoyamColocasia esculentaDasheenTaro
Light
Bright indirect light to partial shade
Habit
Clumping, rhizomatous
Care
High (requires consistent moisture)

Safety status

Cats & Dogs

Potentially toxic

Consulted references classify the plant as toxic or irritating for that pet type.

Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.

If a pet has chewed or swallowed plant material and is showing symptoms, contact a veterinarian or poison resource immediately. This product is for structured reference, not diagnosis.

Catsconcern notes

Common signs

Oral irritation, intense burning and irritation of the mouth, tongue and lips, excessive drooling, vomiting, and difficulty swallowing.

Escalation note

The presence of insoluble calcium oxalate crystals causes immediate mechanical irritation. If your cat has ingested this plant, please contact your veterinarian or a pet poison control center immediately.

Dogsconcern notes

Common signs

Oral irritation, excessive drooling, vomiting, difficulty swallowing, and pawing at the mouth.

Escalation note

Ingestion leads to immediate irritation of the oral cavity due to calcium oxalate crystals. Always consult with a veterinarian if you suspect your dog has consumed any part of this plant.

Safer alternatives

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Source evidence

ASPCA Toxic Plant List

toxicology · 99% reliability

Open source

Elephant Ear is toxic to both cats and dogs due to the presence of insoluble calcium oxalate crystals.

NC State Extension Plant Toolbox

botanical · 94% reliability

Open source

Colocasia esculenta is a tuberous, frost-tender perennial that is widely grown for its large, tropical-looking foliage.

cats safety pageMy cat ate Elephant Earsdogs safety pageMy dog ate Elephant Ears

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