This hybrid generally does not produce creeping shoots that root, the way other low-growing phlox do, so it is difficult to divide. The best way to propagate this plant is by taking stem cuttings in spring or right after flowering finishes.
It was originally discovered in the Chattahoochee River valley that runs from Georgia to the region where Alabama and Florida converge.
‘Chattahoochee’ phlox is believed to be a natural hybrid of two native species: wild blue phlox (P. divaricata subsp. laphamii) and downy phlox (P. pilosa).