There are as many ways and times to do your screen as there are growers with screens. It also depends on your variety. To the best of my knowledge this is one thing that can't really be taught. I tried to learn first but it was impossible with the resources available today. You need to practice and experiment to see what works best for you, but here is what I do:

Do not fill the screen before blooming, this is nonsense. Plants sometimes double in size once blooming starts. Where is all that plant matter supposed to go if the screen is already full?

I have not done it right once, but I am getting closer each time. The idea is ultimatly to have one cola coming up each hole in your screen, making a carpet of colas. I am currently growing AK-47. I want to have about half the holes accounted for on my screen before I go to flower. The rest, or at least most of the rest of the holes will get filled in as the main stalks grow past them, and you let the secondary stalks come through and start a cola. There always seems to be a problem with the cola on the main stalk growing bigger, but I try to keep these to the outside, thus making them the ones that get the least light.

After the plant is done stretching, you will know because all of sudden the growth rate will slow down dramatically. This is when I stop moving stuff around and tieing stuff down, and just let all colas come up through. This is normally after about 1 month of flower, and most of the holes on your screen should be accounted for.

This is not easy to do right. But you know about practice...

Good luck and keep us posted.
Opie Yutts Reviewed by Opie Yutts on . about SCROG this is my first SCROG and have a few questions. first off the strain is mazar fem at about 13" tall, i have been training her with the screen and also been tieing her growths to the screen, heard this from ICMAG. how long until i should stop training her to the screen, she is at one week flower. i figured i will train up until the second week of flower. is this a good idea or should io stop tonight. i have been letting her grow about 3 inches and tie that shoot back down, i have about 9 Rating: 5