RE: Southwest Va foodplot
If you are wanting an annual fall plot, I would recommend a brassica/wheat/oat mix. I have heard a lot of good things about this mixture. I am trying Green Patch Plus (brassica, wheat, oats and clover)this fall in my annual plot. In mountain country, I heard the brassica has great drawing power in late fall/winter.
If you are wanting to plant a perennial plot, I would recommend a clover/chicory plot. Ideally, if you have the area, place out a perennial and an annual plot and you can maintain them seperate.