Feminized seeds are suitable for growers of all levels, as it takes the burden off of having to determine sex. Feminized cannabis seeds are the result of a scientific process meant to produce only female seeds. The process involves forcing female plants to produce pollen sacs which are then used to pollinate other female cannabis plants. When a female plant is forced to produce pollen sacs, it can be expected that the pollen coming out of it will have female genes and when matched with another female, it will then have the natural tendency to produce only female seeds.
Growing only female plants is one of the surest ways to ensure that they will remain sensimilla due to the absence of male plants in the growing area, but there is no guarantee that your plants may not hermaphrodite.