Mystery Flower

This is one flower that I didn't plant, but it must have either survived or been a new seed that floated and landed here next to my compost bin. However it came to be, I thought it was nice. It is always pleasant to find something that cheers up your garden with no effort on your part. It seems that most of the time the forces of nature are against the hard working gardener, but every once in a while the stars align and you find a gem that grew on its own. (The only problem is I also have no clue what it is, but I'll let you know if I find out what it is, and hope you'll let me know if you know what it is.)