You'll love it. I just sprinkle the seeds wherever in spring and get this frothy mass of blooms all summer. I've read it can be sheered back for a neater look on the second bloom, but I've never been driven to do that, and it's still gorgeous. I have white, pink, and purple mixed. Don't know whether it will withstand foot traffic, but I'm you'll leave some lovely scented footprints either way.
