Is Black Locust Toxic to Cats?
Also known as: False Acacia, Robinia pseudoacacia · Robinia pseudoacacia
What makes it toxic
Robin, a lectin-type toxalbumin similar to ricin but weaker, concentrated in bark (especially young shoots), seeds and leaves. It damages the gut lining and interferes with cellular function.
Warning signs to watch for
Drooling, vomiting, diarrhea and abdominal pain within a few hours, sometimes followed by weakness, depression and, in larger ingestions, incoordination or collapse.
What to do if your cat eats it
Remove chewed material, rinse the mouth and call your vet the same day. Weakness, wobbliness or collapse after chewing bark or sprouts means an immediate clinic visit.
Common questions
Which part of black locust is most dangerous?
The inner bark of young shoots and sprouts carries the most robin, then seeds and leaves. Chewing saplings and seed pods is the classic exposure for curious pets.
Are the fragrant flowers safe?
Flowers are considered the least toxic part — some cuisines even use them — but do not encourage pets to forage on the tree at all.
More plants checked for cats
This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate something concerning, contact your veterinarian or a pet poison hotline right away. Checking what your pet can eat? Visit our sister site SafeOrToxic.