Answer: The best time to transplant evergreens and deciduous plants is in very early spring or, for deciduous plants, in the fall. The reason for this is that it allows the roots time to become reestablished before the heat and typical moisture stress of summer. Evergreens such as hollies, however, should only be moved in the spring because they continue to lose moisture through their leaves over the winter and the reduced root system due to transplanting would not be able to supply enough moisture to replace the loss. There is reason to be cautious in that it is difficult to successfully move larger trees as well as evergreens, so you may want to try to leave those in place as much as possible.
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