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Do plants from seed need any darkness to show sex?

Discussion in 'General Marijuana Growing' started by Hotwired, Mar 18, 2009.


    Hotwired Well-Known Member

    I have ten 3 week old plants that have been under a 400 watt mh 24/7. Do I need to give them a few hours of darkness to show sex or will they show after 4 weeks no matter what?


    GoldenGanja13 Well-Known Member

    They will show in another week, look at the 6th 7th node up and you will see her presex, also means she is mature. You know your plant will grow on 18/6 just fine.

    Hotwired Well-Known Member

    18/6 what's that lol.... just kidding.

    I haven't grown from seed in 5 years. I forgot if the lil guys need dark to show sex or not.

    So you say no dark. We will see in a week or so. Thx for reply :bigjoint:

    easygrinder New Member

    they will show sex when they are mature enough on their own without any darkness, it will most likely be more than 4 weeks before you get to that stage however

    GoldenGanja13 Well-Known Member

    When your plant is 7 nodes high look between the 6-7 node for signs of sex
    Also I prefer to give them 18/6 because the roots need complete darkness to relax and get set to go again. Hmmm something like that, I stones of some Diesel and I know I read it in the bible below.

    SiriusGrower Active Member

    put your plants to 12/12 and you should see sex in about 2 weeks.

    I heard, but not tested, if you don't want to 12/12 your plant, take a small cutting and 12/12 that beast, same sex as the parent.

    Also, I wouldent think growing from seed or clone or any means other than those would make the plant act differently.

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