Keeping cats away from Christmas trees can be a challenge, but there are a few strategies that can help. First, try to create a barrier around the tree, such as a gate or a fence. You can also use scents to deter cats, such as sprays containing citrus or other scents that cats dislike. Additionally, you can provide your cat with alternative areas to explore, such as a scratching post or a cat tree. Finally, it's important to monitor your cat closely and redirect their attention if they approach the tree.