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Pet safety · Dieffenbachia

Is Dieffenbachia Toxic to Cats?

Yes. Dieffenbachia is toxic to cats per the ASPCA.

Dieffenbachia (Dieffenbachia) is listed as toxic to cats by the ASPCA. Keep it out of reach of pets and contact your veterinarian or the ASPCA Animal Poison Control Center (888-426-4435) if ingestion is suspected.

Toxic principles

Insoluble calcium oxalates, proteolytic enzyme

Clinical signs

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

If your cat ate Dieffenbachia

  1. Remove access to the plant immediately so no further ingestion occurs.
  2. Identify how much was eaten and roughly when. Note any visible plant material in vomit or stool.
  3. Call your veterinarian or the ASPCA Animal Poison Control Center at 888-426-4435. Be prepared to describe the plant, the amount eaten, and any symptoms.
  4. Do NOT induce vomiting at home unless specifically instructed by a veterinarian — it can worsen some toxicities.
  5. Watch for symptoms: Oral irritation, intense burning and irritation of mouth , tongue and lips, excessive drooling, vomiting, difficulty swallowing. Seek emergency care if any appear.

Browse all cat-safe plants

Looking for safe alternatives? See our full list of pet-safe houseplants (verified against the ASPCA database) or check whether Dieffenbachia is toxic to dogs.

Source: ASPCA Toxic and Non-Toxic Plant List — Dieffenbachia. Last verified 2026-05-28.

This page is for informational purposes only and does not replace veterinary advice. If you suspect your pet has ingested a toxic plant, contact your veterinarian or the ASPCA Animal Poison Control Center at 888-426-4435 (a consultation fee may apply).