Christmas trees are generally considered safe for dogs, as long as they are properly set up and maintained. However, there are a few things to keep in mind. Christmas trees can be a choking hazard, so keep any ornaments, tinsel, and other decorations out of reach. Also, if your dog is prone to eating everything in sight, it's a good idea to keep an eye on them around the tree. Finally, be sure to keep your tree watered and healthy, as a dried out tree can be a fire hazard. With proper care, your dog and your Christmas tree can coexist peacefully!