To grow a Christmas tree from a cutting, you will need to follow these steps:
1. Choose a healthy, disease-free Christmas tree as a cutting. Select a branch with no visible defects, such as dead leaves or browning needles. Cut the branch at an angle with sharp pruning shears or loppers, making sure to leave some stem.
2. Trim the lower part of the cutting to just above a bud, making sure to remove any leaves or needles from the lower half of the branch.