Answer: Coppery leaf color can indicate stress, and it is possible that there is a rooting problem underground causing the plant to begin to be stunted a bit. This could be the result of poor rooting for whatever reason such as poor planting procedure or a rootbound plant or an underground obstruction or so on. Since I have not seen the plant it is difficult to really tell what is happening long distance. If you are unsure, I would suggest you work with your professionally trained and certified nurseryman and/or your county extension. They should be able to tell you if crepe myrtles in general in your area had a rough winter and if this is typical of what they are seeing as a result, or else help you troubleshoot if it might be related to something else. Good luck with your crepe myrtle!
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