I am sorry for this delayed reply to your gardening question. The spring rush has brought a deluge of questions and we are working hard to catch up!
I have been trying to determine the identity of your mystery plant based on your description. The best guess is that you are referring to a southern garden phlox (Phlox paniculata). The following web site offers a photo of one such variety for you to confirm.
Thanks for the question. Best wishes for a wonderful gardening season. Please stop in again soon!
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