Fraxinus americana, 'Autumn Purple', is a seedless male tree and is a cultivar of the species which is native to moist areas. This fast growing tree grows 2/3 feet per year. It is almost pyramidal with a round top when young, but gradually slows down and develops an oval shape. Autumn Purple Ash trees prefer a sunny location. This deciduous tree develops a consistently outstanding deep red, maroon or purple fall color. There are few if any trees with longer lasting fall colors. The Autumn Purple Ash tree makes a great tall shade tree.