This year I noticed lots of bright blue Tradescantia looking flowers in a weedy patch of my yard. They are very beautiful. I came across an internet photo that looked just like this and it was Commelina tuberosa. I couldn't get much info on it. I'm sure this is what I have--but where did it come from? Is it a weedy native I hadn't heard of? I didn't have these type of seeds, so I know I didn't sew them. I remember seeing them last year also. Any info on this?

Thanks, mgood4u