Before we went to Korea in 2008, my SIL  Jill gave me some creeping phlox.  I planted them along side our driveway.  I did not anticipate that it will grow thick.  I saw it's first bloom this year and I love it.
I only have it on one side  so after the flowers were gone.  I replanted some of them on the other side.  I hope that next year, it will bloom again.