Well Warren, here's another reason you can put on your list. Ours is an English elm and it's taking over a large part of our neighbors yard and our own with the root sprouts everywhere. This is one tree that should not be planted around houses. We've got sproutlets about 150 feet from the mother tree! It attacks our septic tank and any garden bed that has a hint of moisture in it. Worse than willow in my book.