Why
Dieffenbachia contains insoluble calcium oxalate crystals. When a pet bites the leaves, these needle-like crystals are released and irritate the mouth, tongue and throat.
The pain usually stops pets from eating much, so serious poisoning is rare. Rarely, swelling in the mouth or throat can affect breathing.
How to recognize it
Large oval leaves blotched and streaked with cream, white or yellow grow on thick, cane-like stems. It is a common, fast-growing plant in homes and offices.
Signs to watch for
- Pawing at the mouth
- Drooling and foaming
- Vomiting
- Difficulty swallowing
- Swelling of the mouth, tongue or lips
What to do
- Rinse your pet's mouth gently with water and offer something cool to drink or eat.
- Contact a veterinarian if symptoms are severe or last more than a few hours, or immediately if your pet has trouble breathing.
- Keep the plant out of reach of pets that chew leaves.
Pet-safe alternatives
Looking for something similar without the risk? These plants are listed as non-toxic to cats and dogs.
Related plants
Sources
- ASPCA Animal Poison Control Center. Toxic and Non-Toxic Plant List (dogs, cats).
- Merck Veterinary Manual. Toxicology section.
If your pet has eaten a toxic plant, contact your veterinarian or an emergency animal hospital right away and bring a photo or piece of the plant. In the US you can also call the ASPCA Animal Poison Control Center at (888) 426-4435 or the Pet Poison Helpline at (855) 764-7661 (fees may apply).