Thanks, @Yvonne Smith I look out that window every day, and never saw it before today, so it must have bloomed fairly recently. I've heard of canna lilies, and knew it looked somewhat familiar, but couldn't figure it out. Wow, that's pretty tall! If they get that tall, I won't be able to see the tops, other than from my bedroom (2nd floor) window! A bonus is that I found out that next to that is a ginger plant. I never would have thought my neighbor would have a ginger plant, but sure enough, it even smells like ginger. Hopefully some roots will grow, and I can snag some for free, because I'm sure he won't be using them.