Holly leaves and berries cause mouth injury and gastrointestinal upset.
The spiny leaves can lacerate the mouth and esophagus, and the berries contain toxic saponins.
Holly contains saponins, methylxanthines and cyanogens in its berries and leaves. The spines on the leaves frequently cause oral trauma — drooling, head shaking and vomiting that includes plant material with sharp edges.
Sources
A few berries cause GI signs; ingestion of larger amounts (10+ berries) warrants veterinary care.
Contact your veterinarian or an emergency animal poison hotline immediately. Do not induce vomiting unless instructed by a vet.
callFind Emergency Vet