I use Antler King Fall / Winter / Spring Food Plot Blend in Oklahoma. Our weather can change in the blink of eye from warm to extreme cold, ice, and snow. I have had really good success with it. It has a mixture of winter peas and winter rye that provides in excess of 20% protein in all three seasons. I mix in my own turnips that you should be able to get from any feed store. It can grow up to 6-8" tall in just 10 days so its very fast growing. It runs me about $50.00 for a 34lb bag thru a guy that has an on line website. I have enclosed the link for you.
http://astore.amazon.com/huntincabin-20