When mature, the katsura tree can reach heights of 40 to 60 feet. Its habit varies from oval to wide-spreading, making it a fine tree for a large space. The beautiful rounded leaves are evenly scalloped; they emerge reddish-purple and become a beautiful blue-green color. In the fall, when the tree turns yellow, perhaps with a tinge of orange, an observant gardener may catch the scent of cotton candy coming from the changing leaves. Native to China and Japan, the striking leaves of the katsura are similar to those of a redbud, but smaller and more graceful.