With the bit of foodplotting I have done and knowing you are well north of me here in Pa. I would tell you to plant right now. I will be planting around mid August. If you call any of the companies, they can make suggestions as of what and when to plant. If you are looking for something easy that the deer really seem to like, try Whitetail Institutes No-Plow. I had great luck with it, fast growing and they ate it up. Biologics Premium Perennial is another good blend of Clover, Chicory, and Brassica that has done well for me. Best of luck.

Shane