General aspect including flower head shape is like Phlox paniculata. The only other one to check would be P. maculata.

Looks rather like P. 'Jeana'

Looks like Jeana but possibly Robert Poore. Jeana is a favorite of Swallowtails. Check out Mt Cubas website, they had Jeana and Robert Poore in there trial. I have Jeana and it gets about 5 ft tall but from what there website site says so does Robert poore.

https://mtcubacenter.org/trials/phlox-for-sun/

Garden phlox, Phlox paniculata, is well known for self seeding and named cultivars are unlikely to produce offspring that are true to form. The photo looks very much like the species, which is native to a large swath of the country and as also naturalized further afield. I'd be reluctant to assign any cultivar name to this plant.

Gardengal you may be right but they mention that they lost the identity of it which sounds like they are talking about the tag which sounds as of they bought it from nursery. All the garden centers at least in my area only carry cultivas. I have 4 Jeana and it looks just like that. I posted several pics of mine in another thread if it helps for comparison.

Thank you all for your input!

I believe this is Phlox paniculata Jeana. The smaller flowers and the increased number of flowers in the inflorescence screams Jeana. It comes from a Wild population in Tennessee, and it Will come true from seed.

I've been talking to a few people about Phlox paniculata jeana and it is basically sterile, so my comment about it growing true from seed isn't so truthful. I think the coming true from seed info came from a wrightup from Izel Plants. The story is that Jeana discovered 'Jeana' in her back yard that goes up to the river. She only found 1 plant. The 1 plant story makes sense because if it had been a whole colony, it would have been considered for a taxonomic placement as a subspecies or variety. It's still a variety, just not taxonomical.

https://www.plantdelights.com/products/phlox-paniculata-jeana-summer-phlox