ScrOG Screen of Green Growing

Overview of the real ScrOG Process

Scrogging, or Screen of Green, is a form of  low stress training(LST) where the main goal is to maximize the yield and utilize the whole footprint of your light. With standard, Christmas tree style plants, you can only lower the light until it’s close to the top cola. Any buds from there down are getting less light. With a traditional setup, the lower each bud is on the plant, the less light those buds get.


The scrog process is done by dividing, or breaking down the main cola, in conjunction with raising all the lower bud up to the canopy.

Grow the plant horizontally until you are a few weeks into the Flowering stage.

This is a key point as many attempts at Scrogging turn out to be merely a skeletal support structures for standard plants, not real Scrogs.

Screen materials:

Below are the 5 main ones used

1.) Commercial ScrOG(Trellis Garden net) – easiest and can be purchased online for less than $20

2.) STRING – The very best. Laces up quick and easy to cut at harvest time. Throw it away and use a new one with every grow.

3.) Plastic fencing – works well but is kinda sloppy looking.

4.) Chicken wire / fishing line – The 2 worst

5.) Twine/hemp cord – Pretty much the same ease of use as string but you get hairs in the buds from fraying.

This is a version of a screen that is both easy to work and re-usable forever. A simply lined square of 2×4’s with eye hooks

So now that we are all laced up and ready to go, let’s talk about a key element to Scrogging,….Veg time.
How long should you spend in the vegetative stage when growing under a Scrog screen?
Veg time varies greatly;  mainly with method.
With Hydro, it’s much shorter.  6-8 weeks in soil, with hydro, that’s cut in half.
Here’s a general rule to follow: the screen should be no higher than 8” above the medium or plant base. You then fill your screen during the stretch by tucking (that’s coming) all those arms into the empty voids.
Important note: In ScrOG, the screen should not be more than 8″ above the base of the plant.
The truth is, the length of time spent in the vegetative stage is something you just have to play with to really learn. You need to gain the experience of actually running a screen that could have taken more plant to fill (needed more veg time) and also running one that is too crowded.
Once you get these experiences under your belt, you’ll really have a feel for veg time. You must tailor the veg time according to how many plants you’re growing and how big the screen is. Sorry I can’t help more on this category, but this is the one you have to do to learn.


By topping, you create more of these arms to spread out across the screen.
That is the whole point of a ScrOG.
If you don’t top,  you will have 1 cola higher than the rest, thusly, limiting the light height.
By topping, that main cola, all the buds are level on the screen, allowing you to get that light right down on them for nice, even coverage.


Tucking is easy but takes care. ALWAYS TUCK SLOWLY AND CAREFULLY
While those arms are stretching, you allow each one to grow up and through a square in the screen.  Get them about 2”-3” above the screen and then VERY GENTLY, pull it below the screen and move it to the next square away.
You continue to do this all throughout the stretch, …continuing until about 2-3 weeks into the Flowering Stage.
The screen takes constant manipulating until the last stretch is over but once it’s done, so are your Scrogging efforts.
To obtain maximum control don’t be afraid to add more bondage if needed. Zip ties are awesome and can be easily cut out with pruners later.

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