Name That Bloom

I saw this tree (well several of them, planted around Brian's building) while I was out of town and I love it...problem is, I don't know what it is.

I know plants and flowers but when it comes to trees and shrubs I'm pretty well clueless and lost. I'm wondering if anyone out there has an idea.

Here's a closer picture of the leaves and one of the flower bunches.

They had it in three flavors: white, light pink, and this darker pink. I'd love to get a couple of the darker pink ones for my own garden. Any ideas or suggestions are greatly appreciated.

Run for Cover

It's getting colder. Blech. Apparently we're in for about five days of cold and ick. I went around and covered as many of the young plants and fresh growth as I could. Hopefully things won't be too badly damaged. It's a shame because the lungwort, bleeding hearts and trilliums in the shade bed are doing beautifully so far.