OK 8 inches,, hay fields get cut to say 3 to 4 inches, and they grow back well,, I would think that mowing it down and letting God and the rain bring it back and then just maintain it after that,, put the horses, goats, sheep cows in ,what ever and they will take care of it from there, only need some dress up from time to time. Trying to maintain 8 inches seems kinda silly to me, but then what do I know