Holly
Also known as American Holly, English Holly, European Holly, Christmas Holly, Inkberry, Winterberry. One plant, one grade per pet — the verdicts below are transcribed from primary sources and human-reviewed.
Holly is mildly toxic to cats (S1 Caution): its saponins cause vomiting, diarrhea, and lethargy after eating the leaves or berries — low toxicity per the ASPCA — but the spiky leaves can also cut a cat's lips and gums, which is a mechanical injury rather than a poisoning.
FULL VERDICT →Holly is mildly toxic to dogs (S1 Caution): its saponins cause vomiting, diarrhea, and lethargy after eating the leaves or berries — low toxicity per the ASPCA — but the spiky leaves can also cut a dog's lips and gums, which is a mechanical injury rather than a poisoning.
FULL VERDICT →