Eucommia ulmoides (Hardy Rubber Tree)
If you are looking for a tree that can get large this is one worth taking a look at. At Yew Dell there is a large specimen along the edge of the Arboretum just past the Tobacco Barn and Gift Shop. It can mature at over 60' tall and possibly up to 50' across. Waxy, deep green leaves are trouble free and persist on the tree late into the fall before they fade to a light green and then drop off.