My first post on a discovery of a hybrid of this plant is here and that was a few years ago. After I transplanted the hitchhiker from my pot of pansies it put up its beauty the next spring in photos HERE. Yes, it is a little bolder in color and size than the wild variety below, but both are invasive.
Val (who no longer blogs as much) pointed out what a weed this was in England and now that I have a really weedy version on the other side of my driveway competing with my lawn...which is not such a great lawn anyway... I am enjoying the invasion. I think I will just leave this ground cover even though the blooms will stop once the weather gets warm.