Perhaps Abutilon theophrasti, velvetleaf? Here is a link that might be useful: Link to info

The advantages of planting most perennials, shrubs, and trees (in our zone) in early to mid fall is slight compared to planting them in early to mid spring. In colder climates, it's often best to wait until spring to plant. If you are planting a fast growing or top-heavy deciduous tree or shrub, fall might give the roots time to get more well established before the plant experiences wind that could push the tree, with a smaller root ball, over. Basically, plant at whichever time is more convient to YOU. If you plant them correctly and water them until they get established either time (in this climate zone) would work just great.

Name that plant: http://forums2.gardenweb.com/forums/namegal

Avoid the following trees because they have shallow roots that push up and crack paving: Norway, Sugar, Silver or Red Maple; Pin, Live or Willow Oak; American Elm; Ash; Beech; Sweetgum; Tulip Tree; Hackberry; Poplar; Cottonwood; Sycamore; Plane Tree; Willow; and River Birch. Tillia Cordata "Littleleaf" (Littleleaf Linden) is hardy to zone 3 and provides dense shade. This cultivar supposedly grows 30 to 50 ft. with a spread of up to 30 ft. Fragrant, creamy yellow flowers in drooping cymes appear in June. Honeydew and bird guano are a constant threat with parking under trees. That does not mean these problems will be overwhelming. Your first problem will be waiting for the tree to grow large enough to cast shade. Make note of where the sun rises and sets. It's much better to have shade in the afternoon when the temperature is highest.