9 Holiday Pet Hazards
Contrary to popular belief, when it comes to pets, poinsettias and Christmas cactus are relatively harmless; if ingested, these plants may cause an irritating reaction in the mouths of dogs and especially cats. Mistletoe and holly, however, can be toxic if ingested.
Dangerous for: Cats and dogs.
Possible symptoms: Mistletoe and holly may cause vomiting, diarrhea, and heart arrhythmia in both cats and dogs.