Leyland cypress is sometimes grown as a living Christmas tree in warmer regions, but it does not work very well for this purpose in colder climates, as it does not tolerate the indoor-outdoor transition very well. It is a very popular choice for this purpose in the Southeast U.S., where it can be grown year-round in a large pot filled with a well-draining potting medium (see "Potting and Repotting," above). A 2-foot-tall potted sapling can reach Christmas tree size in just a year or two. Bring the tree indoors for no more than seven to 10 days at holiday time, and keep it moist but not soggy. Remember that this is a fast-growing tree, so it can be hard to use it for the same purpose a second time the following year. Once it serves its holiday function, the tree is often transplanted into the landscape or discarded.