Anderzhon Nursery Sales has several suppliers of premium quality Shade and Ornamental trees.  With suppliers ranging as far North as Minnesota, as far South as southern Illinois, as far East as Ohio, or as far West as Oregon, we've got the material you're looking for.  Many of our suppliers specialize in that 2 to 3 inch size range, but we do have sizes ranging from small containers to 6" caliper trees.