Q&A: Planting a Live Christmas Tree
Tips for maintaining a live Christmas tree indoors.
Q: We would like to have a live Christmas tree, one that we can plant after the holidays. What is the best way to do this?
A: It's very stressful on trees to be used as indoor Christmas trees. Ideally they should be kept indoors for only a few days. Keep the tree cool and the rootball moist. It's a good idea to dig the planting hole ahead of time and keep the backfill in a location that does not freeze so you can use it to plant the tree right after the holidays. If the ground has already frozen, keep the tree in a sheltered location until the ground thaws. Heap plenty of mulch around the rootball to insulate it from extreme cold.
— National Gardening Association