Tree = Chinese Chestnut. Provides outstanding mast and can be trained to be grow "bushy" and it holds leaves all winter. Some degree of staggered drop times within the run of the mill trees, and special cultivars to provide even later drop times. So you get mast, screening, and some thermal cover.
Shrub = Hazelnut. Thick screening, mast and cover.
Grass = The native Broomsage Bluestem that grows on my farm. It grows eye height to an average man and stands the winter better than any other grass I have ever seen - including switchgrass.
I also like the cedar response - so very true. And, I can't live without apples, so can I still go buy some....