Yea, they were all started at the same time. Typically a male will flower first. I know a number of folks that will start a round 10-14 days after the first, cull the males from the first round and by the time the next round is ready, the males will have spurted (in the second round) and the females from the first round will be ripe & ready to receive with loads of flowers for maximum seed production. I'm going to be saving the pollen from this first round, too, to make sure I have enough.