Name this Maple
Hi, this maple started growing in a pot on my deck 2 years ago. It' grew from under a foot last year to over 5 ft this year after I transplanted it to larger pot. I'd like to identify it, but need some help. Please let me know your thoughts on the variety?
And should I bring it inside for the winter? I didn't last year, but we also had an exceptionally mild Chicago winter last year and I want it to flourish.