You may have to wait a bit longer, though, depending on the type of weed and feed product you used. Crossing naturally male cannabis plants with feminized ones should result in a yield of seed-bearing flowers, but the resulting offspring will have the same roughly 55 feminine, 45 masculine ratio as seeds created in the regular way, and there is no real advantage to doing this. It is difficult to achieve good results with a cannabis strain such as Silver Haze in a cold climate with few hours of sunlight. Source: https://collectednotes.com/plinko/mastering-marijuana-how-to-purchase-weed-seeds-legally