your only a few weeks late, if you look at the wild weed, it's about 12 inches tall right now, and the farmers soybeans are like 2-4 inches tall, i think you have at least a week or two to get a good shot at a decent harvest, planting late wont effect your harvest times much but it will mean less time out in the woods risking discovery, with the drawback of probably smaller plants and less product, though every bit as potent.