I apologize for this delayed reply to your gardening question and hope it is still helpful to you.
There are many options and it really comes down to what you find to be aesthetically most appealing. Flowering plants are not the cause of allergies in most cases. Trees and weeds and some grasses have wind borne pollen that is the cause of the vat majority of allergies. The following web sites list some great flowering plants for Georgia:
Thanks for the question. Best wishes for a wonderful gardening season. Please stop in again soon!
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