Wishbone Flower 'Clown Blue'
I was told in the plant ID section that this was a Torenia fournieri Wishbone Flower
Volunteer came up from seed apparently dropped from previous homeowner's plants. Doing great in Central FL full sun in the fall ... not sure how they'd do in the summer.
This little plant was a volunteer and I LOVE it ... couldn't ask for more, easy care (ignore it!) and it blooms profusely!