The all around best summer-early fall attractant I would have to think is Soybean. Two fall-early winter attractants are Corn and Sorghum. I went to the local Tractor Supply the other day and they had all their deer management stuff in. I picked up a bag of..Evolved Harvest Maximize.. It's a mix of Forage Soybean and Grain sorghum. And even some sunflower seed thrown in as well. I think it will be amazing not only for deer but turkey and gamebirds as well.
It says for your zone that you can plant it from...April-August.
Good Luck