Morning Glories: Looking for ID - help please?, 1 by tucsonjill

tucsonjill wrote:
Hi all! I have a volunteer morning glory that popped up in a small atrium right outside my bathroom window. So pretty, I gave it a trellis to play on so I could admire it better, but I'm wondering what it is. Small flowers, maybe about 1" across, blue with white throats. They stay open only for a very short period of time before closing, and so far I don't think I've ever had more than 4 or 5 at once. The foliage is very bright green, and the leaf shape shows up well in the photo.

Any ideas what this might be? I'm hoping it'll set seeds for next year.

Thanks for any help!