They look like Phlox paniculata to me but it is difficult to see detail. Hope your L.c. show up.

They seem too far along for Lobelia in your zone. Mine are not that far along, and I am actually zone 7 now.

My first thought was phlox as well.

:)

Dee

Yeah, they do look like phlox. Well, phooey! I hope those two Cardinalis come back. I was got sick after I planted them last year. I briefly got to seem them bloom.

Hope your recovery was quick. If your L. c. was allowed to go to seed you should have seedlings come up as well.