Scrog Virgin

[Rainbow Warrior]

Hi everyone, about to use the scrog method for the first time. Couple of questions:

1. I’m planning to grow Lambsbread Collie (95% Sativa). Grow room is 3 x 3. How many plants should I grow in that space?

2. Height of screen above pot?

Any help appreciated...

 

[DoubleX5150]

4 plants at the maximum imo. I am growing in a slightly smaller tent, and 4 plants has it packed to the brim.
As for the scrog net, it depends on how many times you top them. I would try to keep it 4-6 inches below the very top of the canopy.
Some people who use scrog nets will leave the net on at all times, and then use a shopvac to suck out the run off from the saucer. This only works if you have a large tent; for me in my 30in x 30in tent, I have to carefully lift up my scrog net to remove my plants from the tent, there simply isn't enough room in there for me to get a shop vac in there to remove the run off water.
Also keep in mind that sativas are known for growing tall, they don't get stocky and bushy like indicas. So top/LST early in the veg stage so you can keep the growth under control.

 

[Harmanjit9]

4 plants at the maximum imo. I am growing in a slightly smaller tent, and 4 plants has it packed to the brim.
As for the scrog net, it depends on how many times you top them. I would try to keep it 4-6 inches below the very top of the canopy.
Some people who use scrog nets will leave the net on at all times, and then use a shopvac to suck out the run off from the saucer. This only works if you have a large tent; for me in my 30in x 30in tent, I have to carefully lift up my scrog net to remove my plants from the tent, there simply isn't enough room in there for me to get a shop vac in there to remove the run off water.
Also keep in mind that sativas are known for growing tall, they don't get stocky and bushy like indicas. So top/LST early in the veg stage so you can keep the growth under control.

Is it necessary to remove the run off water? I'm using 4x4 tent with 4 plants and I leave my run off water on the floor and it jus dries up with the heat of my 400w hps lights. Im using fabric pots.

 

[ShedsAndTents]

As many as you want! My first and most recent scrog were single plant scrog. 2x2inch trellis nettings were filled up in a month and a half veg to about a 3ftx3ft area. I did this outside and i feared the cold coming so I moved it inside and removed the scrog and ended up with coke can sized buds about 1ft long on a 2ft height plant. About 4 ounces. Gorilla glue. I have to stick my local laws but alongside that, I like less plants as I form a corny emotional bond. I called her harambe a bad storm broke off one of her 12 main colas which was the main cause of moving her inside.

 

[Actuosity]

Is it necessary to remove the run off water? I'm using 4x4 tent with 4 plants and I leave my run off water on the floor and it jus dries up with the heat of my 400w hps lights. Im using fabric pots.

You want to remove the run off, otherwise it'll soak back into the pot and can cause lock up.

 

[ShedsAndTents]

You want to remove the run off, otherwise it'll soak back into the pot and can cause lock up.

Is it lock-up or water logging?
Because I can see how the drop in DO of setting water can be a problem but not lock-up.

Usually my runoff evaporates in a day but it's not any more than a couple of cups.

 

[Rainbow Warrior]

4 plants at the maximum imo. I am growing in a slightly smaller tent, and 4 plants has it packed to the brim.
As for the scrog net, it depends on how many times you top them. I would try to keep it 4-6 inches below the very top of the canopy.
Some people who use scrog nets will leave the net on at all times, and then use a shopvac to suck out the run off from the saucer. This only works if you have a large tent; for me in my 30in x 30in tent, I have to carefully lift up my scrog net to remove my plants from the tent, there simply isn't enough room in there for me to get a shop vac in there to remove the run off water.
Also keep in mind that sativas are known for growing tall, they don't get stocky and bushy like indicas. So top/LST early in the veg stage so you can keep the growth under control.

Thanks for your help: that answered a lot af my questions; as for a ventilation fan: above or below the netting, or both?
How often do you top? Gor my outdoor crop I topped 4 times. I read that some Farmers only top2-3 times.

RW

 

[Actuosity]

Is it lock-up or water logging?
Because I can see how the drop in DO of setting water can be a problem but not lock-up.

Usually my runoff evaporates in a day but it's not any more than a couple of cups.

It would cause nutrient lock the reason for run off is you are trying to remove the excess salts and nutes from building up in the roots, yes some of it evaporates but you’ll mostly just have the water evaporate and the nutes stay dry and stained under the pot to be reabsorbed again next time they get wet. You should be watering in soil to get about 20% run off back, so if you pour in 5 cups you get 1 cup of water to dispose of. If you let it sit there you arnt using a run off method, just height of laziness method.

 

[DoubleX5150]

Thanks for your help: that answered a lot af my questions; as for a ventilation fan: above or below the netting, or both?
How often do you top? Gor my outdoor crop I topped 4 times. I read that some Farmers only top2-3 times.

RW

Definitely keep your ventilation fan above the canopy, it should be attached to your hood if you use one, if not then keep it above your lights. You can also add a 6 inch clip on fan and secure it to the vertical poles of your tent; this will blow air against the stems which will make them stronger and thicker. But be careful about this, for a seedling you don't want to stress the plant out, I'd only point the fans directly against the plants once they are at least a foot tall.

 

[Rainbow Warrior]

Scrog plant cropping Sativa- How often (2/3/4 times or more?

How high should the netting be for Sativa plant above top of plant pot?

Thanks for your help: that answered a lot af my questions; as for a ventilation fan: above or below the netting, or both?
How often do you top? Gor my outdoor crop I topped 4 times. I read that some Farmers only top2-3 times.

RW

 

[Rainbow Warrior]

Definitely keep your ventilation fan above the canopy, it should be attached to your hood if you use one, if not then keep it above your lights. You can also add a 6 inch clip on fan and secure it to the vertical poles of your tent; this will blow air against the stems which will make them stronger and thicker. But be careful about this, for a seedling you don't want to stress the plant out, I'd only point the fans directly against the plants once they are at least a foot tall.

Do u fix the Ventilation Fan, so the canopy is constantly moving or do I point so it doesn’t hit the plant, only moving air in the room

 

[Rainbow Warrior]

4 plants at the maximum imo. I am growing in a slightly smaller tent, and 4 plants has it packed to the brim.
As for the scrog net, it depends on how many times you top them. I would try to keep it 4-6 inches below the very top of the canopy.
Some people who use scrog nets will leave the net on at all times, and then use a shopvac to suck out the run off from the saucer. This only works if you have a large tent; for me in my 30in x 30in tent, I have to carefully lift up my scrog net to remove my plants from the tent, there simply isn't enough room in there for me to get a shop vac in there to remove the run off water.
Also keep in mind that sativas are known for growing tall, they don't get stocky and bushy like indicas. So top/LST early in the veg stage so you can keep the growth under control.

Just read this:

https://www.growweedeasy.com/scrog-tutorial

The dude is fixing his screen 4” above the pot. Is that too low?
U mentioned the growth of Sativas compared to indies. Any idea how high I should go, or is 4” enough?

 

[Lucky Luke]

I did a 4 x 4 scrog running 4 plants (just the one scrog). The net has to be high enough for you to get under. You have to get under it to trim leaves, fix any blockage in the watering system, clean, ...etc. Smaller tent maybe not so high.
More plants means less veg but you still need to get under them so smaller plant count is nice. Having different flowering times plants can be a problem. Having one plant take 3 or 4 weeks longer means your veg'ing plants can get to big and all the timelines are way out.
Apart from a SOG its the best yields. Ive been doing a perpetual rotational and I think ill go back to a SCROG. For watering I used a Halo per pot connected to water pipe and tied to the front corners off the net, just used a funnel to water. Wet and dry vac (maybe with a 90 degree attachment ) makes sucking up over watering a breeze. Scroggin well is harder than it looks. Heres my attempt, 3 strains I think, 4 plants 4 x4 didn't quiet veg long enough but cracked the pound mark.

 

[ShedsAndTents]

It would cause nutrient lock the reason for run off is you are trying to remove the excess salts and nutes from building up in the roots, yes some of it evaporates but you’ll mostly just have the water evaporate and the nutes stay dry and stained under the pot to be reabsorbed again next time they get wet. You should be watering in soil to get about 20% run off back, so if you pour in 5 cups you get 1 cup of water to dispose of. If you let it sit there you arnt using a run off method, just height of laziness method.

I agree, if you're relying on synthetics. All off the nutrients for an entire grow is present in super-soil. Why would I "waste" my limited supply by abiding by an arbitrary 20% statement that is irrelevant to say, super soil or even mediums in a hydrophobic state (Like dry peat, dry coir or simply over dried soil)

 

[Actuosity]

I agree, if you're relying on synthetics. All off the nutrients for an entire grow is present in super-soil. Why would I "waste" my limited supply by abiding by an arbitrary 20% statement that is irrelevant to say, super soil or even mediums in a hydrophobic state (Like dry peat, dry coir or simply over dried soil)

If your nutes are in your soil then you shouldnt water to the point of having drainage, otherwise you are then removing the nutes from the soil. This situation was about apples then you introduce oranges to say someones wrong. Brilliant

 

[jjng5]

I wonder why more people don't run SOG like the commercial growers

 

[madvillian420]

I did a 4 x 4 scrog running 4 plants (just the one scrog). The net has to be high enough for you to get under. You have to get under it to trim leaves, fix any blockage in the watering system, clean, ...etc. Smaller tent maybe not so high.
More plants means less veg but you still need to get under them so smaller plant count is nice. Having different flowering times plants can be a problem. Having one plant take 3 or 4 weeks longer means your veg'ing plants can get to big and all the timelines are way out.
Apart from a SOG its the best yields. Ive been doing a perpetual rotational and I think ill go back to a SCROG. For watering I used a Halo per pot connected to water pipe and tied to the front corners off the net, just used a funnel to water. Wet and dry vac (maybe with a 90 degree attachment ) makes sucking up over watering a breeze. Scroggin well is harder than it looks. Heres my attempt, 3 strains I think, 4 plants 4 x4 didn't quiet veg long enough but cracked the pound mark.


View attachment 4295728

impressive!!! making me want to abandon my plan of LST and SCROG my 3x3 tent instead lol

 

[Rainbow Warrior]

If your nutes are in your soil then you shouldnt water to the point of having drainage, otherwise you are then removing the nutes from the soil. This situation was about apples then you introduce oranges to say someones wrong. Brilliant

How do u make sure that the plants roots got enough water if u don’t have run-off?

RW

 

[Dr.Amber Trichome]

How do u make sure that the plants roots got enough water if u don’t have run-off?

RW

That’s a great question. I think it’s harder for small seeding like plants because they soil stays wet longer and it seems easier to overwater because the root System is so small. When they get bigger it seems easy to me. I just water the pot slowly until the water starts draining. Pick up the pot, get to know the weight. Come back on a daily basis and pick up the pot. Everyday a little lighter. When the pot feels dry and light give it a good slow soaking watering until it drains out. I was never uptight about emptying the excess water from the tray Because I figured it help with humidity and evaporated quickly. I never had a problem with my plants because of not drawing the tray. Plus those pots get super heavy and it’s awkward lifting them sometimes. I have neck and shoulder problems so I am careful not to injure myself. Good luck

 

[Dr.Amber Trichome]

Do u fix the Ventilation Fan, so the canopy is constantly moving or do I point so it doesn’t hit the plant, only moving air in the room

Canopy constantly moving