Yes, azalea.

What they mean is that most commercially produced roses in the US are raised in California and for decades the practice there was to graft roses onto a rootstock. The rootstock used more frequently than any other was an old, once-blooming dark red climbing rose named Dr. Huey. Sometimes the tops of grafted roses die. When that happens dormant buds in the rootstock will often come to life and instead of whatever the original purchaser had in mind, there is the climber Dr. Huey. They will probably bloom in following years (as long as they get enough sun, water, and nutrients), but they will only bloom in June because that's what Dr. Huey does. It lacks the genes necessary to bloom in flushes throughout the summer.

i am going to suggest erythrina, possibly erythrina herbacea in your area, also known as the cherokee bean or cardinal spear. a more showy species with larger flowers that grows as a die-back shrub in my area is e. crista-galli but i don't know if it would be hardy outdoors in tennessee. they will produce seeds here in zone 8. Here is a link that might be useful: cockspur coral tree

MsRedByrd, Rubiaceae is an entire family of plants, not a single species. So people are just saying yours could be in that family but they can't name the exact plant. If, or when, yours flowers post again and all will become clear, I'm sure