How to sex your plants
by Greg Green
You now have spent time and money on your plants. You have grown a small selection in the hope that you will get some females out of them in the end. If you end up with no female plants out of 15 seeds then send the seed-bank a letter explaining how out of the 15 seeds 15 where male. If you are lucky and sincere in your writing then the seed-bank may send you some free seeds or give you a discount on your next order. Seed-Banks or breeders are not responsible for male/female ratios. It simply is not under their control. People get 100% females and others get 100% males, but it is rare that such a thing will happen. To get 5 or more females in a pack of 15 is a good thing.
Notice how the female produces little white hairs and the male produces little ball like shapes. This is the definitive male/female telltale factor. Do not kill away any plants before you see these flowers. It is the only time that you can really say for sure if the plant is male or female.