As the plants move into their flowering stage, they will start to show very clear signs as to what sex they are. My Last Foodie Thoughts. However, if you aren t careful, it can destroy much more than just weeds.  Source: [url=https://www.rikoooo.com/fr/forum/topic/47478]https://www.rikoooo.com/fr/forum/topic/47478[/url]