10 years ago we had to have a flowering cherry tree cut down in our back yard due to black knot disease. We’d like to plant another tree in its place. It’s a south facing yard and we’re wanting it to provide shade for our home. We currently have 3 ash trees and 1 honey locust tree. We are treating the ash trees but are nervous we will eventually lose them. Any advice on a fast growing tree to help shade our home? And can we plant it where our old cherry tree used to be? Thank uou, Cathy