Feminized cannabis seeds are designed to produce only female plants. Normally, a cannabis seed can develop into a male or female plant; the entire process is determined by the sex expressing X and Y chromosomes. “Feminization” is a process of conditioning female plants to obtain male pollen needed for seed production.

A plant with two X chromosomes will be female 99.99% of the time, while regular cannabis seeds with an X and Y chromosome sometimes have a tendency to produce more male than female individuals.