Little boxwood trees have become one of my favorite back drops for my gardens. They are evergreen, so one has something in the garden all winter. I have them along a property line with roses, and they are lovely. There are small varieties or can be trimmed. I like Wintergreen and Chicagoland. Green Mountain is a tall and skinny variety, but it has more trouble in zone 5 than the others. It lives, but I have to trim off unhappy leaves in the spring.
That is not the sea behind the trees. It is a sea of parking lot. The evergreens are much needed.
Little Chicagoland starts. Boxwood roots if one pokes a branch in the dirt.