I have a narrow garden bed at the back of my carriage garage made out of retaining wall. It is directly against my building.
I would like to find a bush, hedge or similar that will grow in this shady area, ideally eventually become over 6 feet tall to blend the building face into the landscape (primarily for neighbour benefit). I live in Zone 3.
Any suggestions of some robust hardy bushes that might be up to the task and thrive in this challenging environ?