The windmill palm, which is also called the Chinese windmill palm and Trachycarpus fortunei, is one of the more cold hardy varieties of palm trees. It is native to China but can survive in all areas of the United States since it can endure winter temperatures of 30 below zero Fahrenheit. Just like all other trees, Windmill palms respond best to transplanting when they are still small and have compact root systems.
Wait until late spring or summer and look for an outdoor planting location that has at least 40 feet of clearance above it. The location should receive full sunlight and have well-drained to slightly dry, sandy soil.
Insert a shovel into the ground 2 to 3 feet away from the base of the windmill palm tree. Lean back on the shovel to loosen the soil and repeat the process all the way around the tree trunk.
Grasp the base of the windmill palm, with the help of another person if needed, and pull the roots out of the ground. Move the tree to the new planting location.
Dig a hole in the new planting site that is two times as wide as the roots of the Windmill palm tree and the same depth.
Mix sand into the soil that you removed from the hole until it is comprised of one-fourth sand.
Insert the roots of the palm tree into the hole and have another person hold it upright while you backfill the hole with soil. Pack the top of the soil down firmly to hold the palm tree upright.
Spread mulch around the base of the windmill palm until it is 2 to 3 inches deep and forms a circular pattern around the trunk.
Water the soil until it is completely saturated. After planting, water the windmill palm tree once per day for the next month.