So I'm thinking about doing some hedlaying on my family's property in Eastern Washington (West of Spokane) and I'm wondering what kind of plants would be good for such an endeavour. We've got about 80 acres and a variety of elevations/areas (marshy, arid, etc). My short list includes elderberry, black locust, willow, and american elm. Does anybody see any issue with these or know of any others that might be good for that area and purpose?