I subscribe to a newsletter from Care 2 Healthy Living and they had a great article on Pet Proofing your Christmas Tree. Here are some of the iimportant suggestions they made.
As you know, puppies, kittens, dogs and cats are curious creatures and they are attracted to things that are new, shiny, and smell good. To keep them safe during the Christmas tree period, please follow these steps:
Hang delicate and treasured ornaments higher on the tree and make sure they are well-secured. ( Unbreakable ornaments are best when you have pets) .Do NOT use tinsel. If your pet ingests it they can end up with an intestinal obstruction that could make them very ill. Leave off food decorations such as popcorn, candy canes and cranberry strings. They will definitely encourage the animals to get into the tree. Electric lights should not be placed on the lower part of the tree where pets can chew on them and make sure the electrical cords are in good shape and out of reach. Check them frequently for signs of chewing. Leave off the angel hair, candles, mistletoe and holly berries. All of them can be hazardous to pets. Pointsettia plants are also toxic for cats so consider artificial ones or putting them out of the cats reach. If you have a live tree which is sitting in water, be sure to use a tree skirt or other covering over the water filled container. Pets drinking the water from the tree can become very ill.
I know this sounds like a lot of rules but you can still create a beautiful, shiny, festive tree and keep your pets safe at the same time.