I am looking to build a screen in my backyard in a residential area. I have planted and absolutely love my hybrid poplars but my only concern is how long they will last and how strong they are. The ones have grew fast and I am happy but I could see how they could be brittle once they hit 60-80 feet and I'm not too sure I want to deal with them hitting a house. I have seen some of the hybrid willows that top out at 30' which would provide a nice screen and some shade, but not too tall. I have no experience with willows. What are some good recommendations of something that is strong yet full enough to provide a nice screen?