I have been looking at switching to a really different coop and run design, called the Padlock System (see it here ) basically you have 4 areas that you rotate between. One is used for ten days, while the other 3 are resting for a total of 30 day. I was wanting to do plantings in each area that could feed the chickens, I am taking the idea from permaculture practices. My goal is to reduce my reliance on feed. What can I specific plants should I use so that there is something available at any given time, obviously you would need several types/varieties/etc to achieve this. I live in NC, zone 7. It can be trees and shrubs as well as ground cover, most likely all of the above, but what mix would give food almost year round?