Here's a photo of a "rescued" plant as it started blooming. Last spring when I found it, it had three little flower heads. It was planted in the middle of a liriope patch, in brick-hard clay soil, next to our concrete driveway (what was a nice plant like this doing in a place like that????)
Anyway, I moved it to a semi-shady spot (in much better soil) where we could enjoy it more. It seems to be pretty happy in its new home, and it the blooms have a really nice fragrance.
Last year, I guessed it was Phlox divaricata, but I'm not positive; the petals are fairly narrow and some of the P. divaricata I've seen have more rounded petals. Any other guesses?
Since this photo was taken, it has grown a few more inches, and has more blooms. It stands about 15" high, the leaves are dark green, narrow and slightly hairy.
Go_Vols: You are right with the name. It is Phlox divaricata. We call it Wild Sweet Williams or Wild Blue Phlox. It is a native wildflower. Grows in our timbers here under the trees, so you planted it in the right spot--shady to part shade. They do smell heavenly. They do spread, but not aggressively. Nice addition to your garden.
Cala, that's what made me re-think what I've got. Yours has much "fatter" (teardrop-shaped) petals; mine are more separated and longer. Could the difference be attributed to exposure (mine are in semi-shade all day, vs. full sun like yours?)