Trees, Shrubs and Conifers: Best small tree to underplant, 1 by Decumbent

Decumbent wrote:
A good Ostrya-like tree that HAS got the horizontal branching is Carpinus caroliniana. It has also got a very interesting smooth, sinewy bark that is very aesthetically interesting at all times of the year, but especially winter.

Stewartia likewise.

Or, do this. Go the to the library and borrow J.D. Vertree's book on Japanese Maples. A classic garden plant, almost over-planted, but rightfully so. And there are so many great JM cultivars that are very seldom planted. If zone 5A is pushing it for JMs, look at Acer pseudosiebolianum. JM-like, but hardier.

Here is a picture of C. caroliniana, showing the horizontal branching.

Scott