Hermie and female nanners are two dif things. Small light leaks makes mine hermie. Not what I wanted. Hermies have male balls and their offspring will tend to be hermies.

Without using chemicals it is trial and error. What works for us is to turn down the temp of the AC in the last 4 weeks of harvest. With 5 strains we have femm beans. All strains act dif. 100 percent indica orange bud will just barely make some naners while S.A.G.E. just goes crazy if you get it cold. You will only get a few seeds this way.

The thing is to have a group of females ready within 2 weeks of harvesting nanners. Nanners are very hard to harvest but should be kept in the fridge untill needed. Polen will only last about two weeks alittle longer in the fridge.