Is Begonia Toxic to Cats?

Yes — Begonia is mildly toxic to cats

Begonias contain soluble calcium oxalates (different from the insoluble form in Philodendrons). The underground tubers are the most toxic part. Above-ground parts cause mild oral irritation.

Symptoms in Cats

If your cat eats Begonia, watch for these symptoms (onset: Immediate to 2 hours):

Vomiting
Drooling
Oral irritation
Difficulty swallowing

What To Do

Rinse mouth. Monitor. See vet if tuber was ingested (more concentrated toxin).

Cat-Safe Alternatives to Begonia

✓ African Violet ✓ Peperomia ✓ Nerve Plant

Quick Facts

Scientific Name

Begonia spp.

Also Toxic to Dogs?

Yes (mild)

Toxic Compound

Soluble calcium oxalates

Toxic Parts

all parts, especially tubers

Sources: ASPCA Animal Poison Control Center, Pet Poison Helpline. View full Begonia toxicity profile.