normal (non-buck forage) oats here last until the first frost and are toast (which is typically November) - 2 weeks or more before our gun opener. Wheat will survive the winter here so oats/wheat carries the green from early season into gun season here. Rye will stray green and growing a little later than the wheat will, but not substantially longer. Oats don;t survive winter here. Rye will wake up first and a few weeks later then the wheat will.....those few weeks here are not a deal breaker in my area typically. I have always planted Jerry/Bin oats....they are going to die so why spend lots of $ if I am providing other cereal grains anyway.