Here in Michigan, I usually plant my plots around the first week of August....depending on what the weather is forecasted to bring. I try to get everything ready..ie weed kill, tilling ahead of time so that when a rain is due within the next day or two, I plant and drag. I usually put down a bag of brassica mix from the Thumb Area QDMA which includes annual rape seed, winter canola, turnips and perrenials like clovers, chicory, and alfalfa. It is a nice blend with lots of different things in it. That gives you an idea of what you might plant late summer and still have a decent food plot. However, the clovers don't really come into their own until the next summer and you can either leave them and have a great clover plot, or start over again. Sometimes I will also stop by Cabelas and get a bag of something else just to throw into the mix. Boy the deer love it and with sufficient rain, the food plots will be 12"-18" high and still going strong on into late December!