Henk admits that when Dutch Passion first released feminized seeds in November 1998, many people were skeptical.
"It was very difficult to make these seeds," he explained. "There were several years of experiments that went into this. At first, we relied on the fact that if you let females flower a long time without getting pollen, near the end of their life cycle some will try to pollinate themselves. But this did not produce a reliable amount of pollen. Then, we tried hormone and chemical agents. The hormone produced pollen, but it also affected the plants in other ways that we didn't like. We tried other applications, and found some that could change basic female plants into plants that produced pollen, which we then used to fertilize other 100% female plants to produce what we used to call ?female seeds.'
"A lot of people think we have created hermaphrodites, but we take 100% female clones, and apply a safe chemical so the clones produce abundant male flowers. Then we take that pollen and fertilize other females with it. Seeds from this method will usually grow out female.
"In the beginning, some people were telling us that the seeds weren't producing all females, but we've discovered some strains don't work well with this process, and some of the success depends on the way they're grown. Now, we aren't getting those complaints. I sell a guy 300 seeds, and 298 of them grow out female. We are seeing that level of reliability."