We relandscaped our yard a couple years ago, and put in a Larch tree (directional, or bi-directional - I forget). It didn't make it, and we are hoping to find something equally interesting to replace it. We are thinking of some kind of ornamental tree or maybe shrub. I was considering weeping cherry, but they seem to be zone 5?

It will be planted very near the sidewalk, but about 2' above it in a retaining walled off area. We were leaning toward a weeping variety, as we want something that won't get too tall (under 12'), and would prefer a small spread (6' tops). It should have good visual interest - I wouldn't mind something that flowers. We already have a weeping pussywillow near it, so something other than that.

So, can you think of anything that might fit the bill that will survive being fairly exposed on a corner of a city lot in the Twin Cities?