SCROG - 12/12 :)

[MickeyBlue42]

Hi Peeps

Really happy cause today I have finally switched my ladies over to 12/12

What I would like to know is do I keep on pulling back the branches that start growing through the net towards the light for the first 3 weeks/stretch?? or do I leave it from here??

Please send me some help people

 

[pinecone]

What I would like to know is do I keep on pulling back the branches that start growing through the net towards the light for the first 3 weeks/stretch?? or do I leave it from here??

I don't do ScrOG grows, but I have done a lot of messing around with shaping plants various ways, including some that were basically ScrOGs without screens. It would see to me that they answer to your question depends on how big your plants are, how much they will stretch, and how much screen you have to fill. Most likely your plant right now has a main stem and branches. Consider what will happen if you train it under the screen during 12/12 versus "let it go".
- Train it under: If you keep forcing the main stem and branches under the screen you are going to promote side branching (branches on branches). Then when you let them go these side branches will stretch up through the screen and form buds. With this approach most of your buds will come off side branches. One reason to continue training under the screen is limiting vertical stretch. Another is trying to get more screen covered by less plant.
- Let it go: If you "let it go" you are going to promote branch and main stem growth, as opposed to side branching. All else equal you will cover less of the screen with the same amount of plant, but the branches and main stem will stretch farther above the screen, thus, there will be an opportunity for longer colas.

If you opt to train under the screen 3 weeks is probably too long as you really do want some stretch above the screen. Most indicas and indica/sativa hybrids are pretty much done stretching by 3-weeks. In general I would think the "let it go" approach would be better with indicas or when you already have a bunch of the screen covered pre-flip whereas the train it under approach would be better with sativas and when you don't have a lot of the screen covered.

You can potentially mess up by misjudging how much plants will stretch, so it is always going to be easier to ScrOG with plants have grown out before. The plant below was basically trained under the screen in 12/12 (except for that there wasn't a screen). It didn't stretch nearly as much as I thought it would which resulted in short colas (too short) and a reduced yield. If I had a better idea of how the plant would grow during 12/12 I would have let it get bigger so that I could "let it go" and still fill the space. This would have allowed for longer colas.



I probably overcomplicated this, but I've been thinking about it a lot in light of the poor results I got from the pictured plant. I hope it helps. Good luck!

Pine

 

[FreezerBoy]

Depends on what you're growing (how much stretch) and the lamp you're using (how much penetration.)

Wait until you see colas start to form. Sativas, or a lamp less than 1K, consider growing the colas horizontally throughout the grow.

 

[MickeyBlue42]

Thanks guys

Ok its my 1st time with strawberry diesel and with these hopefully two 'mothers'!

growing under a 150w HPS in a commercial soil mix using bio bizz range.

I will have to feel it out. Screen was about 65% full when I switched yesterday

 

[VerdantGreen]

yeah its strain dependent, but i would say on average you keep training for around 2 weeks after the flip. if you have a little headroom then its best yield wise to try and get a few inches of cola height above the screen. by the time they have stopped growing...