if you have space to veg until they show sex from preflowers then you could start training the females in the screen however you will probably have to use a higher screen height than normal for a scrog but there really isnt no reason why you could not do a scrog from seed just takes longer.
you would also have the option of taking clones and flowering the clones in a scrog but it would add a few more weeks to your grow but using clones is a better option.
bejay Reviewed by bejay on . Scrog Question So I'm breaking a couple of rules for a scrog grow. I'm not using clones and I'm using bag seed. My question is can I train them into the scrog screen after I've flowered them to show their sex? I wish I knew which ones are going to go butch on me. :s4: Ha ha...I can't believe this is one of the image options. Love it. Rating: 5