Why are my Phlox plants dying and what can be done to save them?

Question: I have four creeping Phlox plants that were planted in the spring of 2023 and grew well. They looked good this spring until about 7-10 days ago when all four almost died overnight. The middle of the plants appear dead. There is some very little life at the very edges. These plants are in read more Why are my Phlox plants dying and what can be done to save them?