Feminized marijuana seeds burst onto the cannabis market in 1998. Their appearance was a real revolution because they contain exclusively female chromosomes (XX) and the production of female plants is almost 100% guaranteed, which are the ones that produce the buds that so much we like them. At first, the cannabis growers were reluctant because they thought that these seeds would not have the genetic potential of the regular versions. But as soon as they began to experiment with them, they realized their enormous value, the advantages of cultivating them and that their traits were at the same level as the original genetics. Nowadays, nobody doubts that it is a very favorable alternative that facilitates the cultivation, speeds up the process and avoids wasted space, time and money.