Feminized Seeds are 100% Female! Unless you're breeding, or happy to weed out any males from your crop. You're going to want feminized seeds! Unlike regular marijuana seeds, which will produce female plants as well as a small proportion of male plants, when you buy feminised cannabis seeds you are guaranteed female plants every time. This means you are able to produce an abundance of delicious marijuana buds from every plant. The demand for feminized seeds has increased in the past 10 years, especially for commercial growers and has now overtaken the sale of regular cannabis seeds on some continents.