I am sorry for this delayed reply to your gardening question. We are transitioning to a new Q&A system and your question was unfortunately lost in the transition. I have discovered it now and hope this reply is not too late to be of help.
That crape myrtle variety will reach a width of about 10 to 15 feet depending on growing conditions and care. You can either plant them far apart so each form a natural rounded shape or put them 15 feet or less so they reach together to form a solid fill of canopy. Either way is fine and they will not care.
Thanks for the question. Please stop in again soon!
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