Begonia
One plant, one grade per pet — the verdicts below are transcribed from primary sources and human-reviewed.
Begonia is toxic to cats (S2 Irritant): its soluble calcium oxalates cause vomiting and drooling, with the underground parts the most toxic — irritating, and rarely serious in cats.
FULL VERDICT →Begonia is toxic to dogs (S2 Irritant): its soluble calcium oxalates cause vomiting and drooling, with the underground parts the most toxic.
FULL VERDICT →Care at a glance
What happens if it's eaten
Signs on record for each animal, transcribed from the cited sources.
- vomiting
- salivation
- vomiting
- salivation
When to call the vet
Call your vet if vomiting or drooling persists or worsens or your cat stops eating or drinking.
FULL VERDICT →Call your vet if vomiting or drooling persists or worsens or your dog stops eating or drinking.
FULL VERDICT →Safe swaps, graded S0
Non-toxic on record for cats — verified against the index at build time.
FAQ
Which part of a begonia is most toxic?
The part under the soil. The ASPCA's entry ends with the sentence "most toxic part is underground," so the tubers and roots carry more of the soluble calcium oxalates than the leaves and flowers do — though the ASPCA lists all parts as toxic, and the grade is S2 Irritant for cats and dogs alike. For a potted begonia that means the danger is a dug-up pot, not a nibbled leaf; for a tuberous begonia stored over winter, it means the bare tubers themselves. The signs on record for cats and dogs are vomiting and salivation. Keep tubers put away; if signs persist, call your vet.