These trees have been planted recently at the Hains Point Golf Course in DC, and at a neighboring apartment complex in Alexandria, and they have all grown fast and succeeded in their environments.
My plan is to start a few cuttings of this and plant them near the stream at Beaver Run, which runs through one of our lots and cuts across in front of us at the bottom of the hill. This stream collects a lot of water from the neighboring hills and eventually feeds Hawksbill Creek, the Shenandoah, the Potomac, and ultimately Chesapeake Bay. I want to put a couple of good riparian plants in there to help protect the watershed.
There's more info on the watershed topic at http://www.purewaterforum.org/?p=93 -