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Should I LST and outdoor grow?

  • Thread starter Thread starter Gaudy
  • Start date Start date Jul 20, 2025
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Should I LST and outdoor grow?

Gaudy Jul 20, 2025 11 Replies 1,347 Views
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Gaudy

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#1
My 2nd grow, first was indoor didnt LST. This is my 2nd grow and I was going to LST but im growing outdoors and wondering if it s worth the trumble since light coverage is so much better outside.

These are Autos if anyone is wondering.

 
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mancorn

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#2
Not saying that you can’t tie a branch over to give it more sun if it’s getting shaded, But the inverse square law says the decrease in light intensity is not linear. It's related to the square of the distance. This means that if you move twice as far away, the intensity drops by a factor of 4. So in a tent moving a branch 6” makes a difference in light intensity, since you’re only feet away from the light source. The sun is over 94 million miles from your plant, so moving the branches around isn’t going to change the intensity. So doing LST as growers practice indoors isn’t worth your time.
 
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Bigalmoby

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#3
Outdoor LST is more of a trying to keep shit manageable and supported for flower you can bend and top but better be prepared for supports for the plant they take a beating and still get big heavy buds all the way in the plant hard bugs nothing like indoors where only canopy gets fat
 
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Gaudy

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#4
Bigalmoby said:
Outdoor LST is more of a trying to keep shit manageable and supported for flower you can bend and top but better be prepared for supports for the plant they take a beating and still get big heavy buds all the way in the plant hard bugs nothing like indoors where only canopy gets fat
Click to expand...
Seems like a lot more work, should I just let it free grow then and defoliate?
 
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mancorn

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#5
Gaudy said:
Seems like a lot more work, should I just let it free grow then and defoliate?
Click to expand...
Defoliating outdoors plants is primarily to increase air flow, as plants can mold/rot in the fall when the buds are large and humidity/rain become an issue. But in your case you want to save as many leaves as possible as they’re what make your plant grow. Also the leaves are where the plant stores excess nutrients. As the plant matures instead of taking up nutrients from the soil it starts moving (mobile) nutrients from the lower leaves to the buds. So the plant will defoliate itself, so to speak, when it’s flowering. At this point just let it do it’s thing.
 
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Galgrows

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#6
Gaudy said:
Seems like a lot more work, should I just let it free grow then and defoliate?
Click to expand...
If they were mine i'd just let them grow free. I've grown many autos outdoors but photos are my favorite in an out. These are autos in 1gal. pots i grew last summer, would of got bigger in 3gal.
 

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Hossgrows

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#7
Gaudy said:
My 2nd grow, first was indoor didnt LST. This is my 2nd grow and I was going to LST but im growing outdoors and wondering if it s worth the trumble since light coverage is so much better outside.

These are Autos if anyone is wondering.

View attachment 2480010
Click to expand...
I did a top and LST on one outside, but its a photoperiod. Probably makes a difference.
 

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Galgrows

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#8
Hossgrows said:
I did a top and LST on one outside, but its a photoperiod. Probably makes a difference.
Click to expand...
Uhh yes it does with photos, beautiful plant.
 
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LoveGrowingIt

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#9
Gaudy said:
These are Autos if anyone is wondering.
Click to expand...
The usual advice is not to do much with autos. I don't even top mine, but I know some do. As for being outside, my understanding is the growth timing for autoflowers is predetermined genetically, so light source and other environmental factors may not matter much. That'd be my guess, anyway.
 
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Gaudy

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#10
mancorn said:
Not saying that you can’t tie a branch over to give it more sun if it’s getting shaded, But the inverse square law says the decrease in light intensity is not linear. It's related to the square of the distance. This means that if you move twice as far away, the intensity drops by a factor of 4. So in a tent moving a branch 6” makes a difference in light intensity, since you’re only feet away from the light source. The sun is over 94 million miles from your plant, so moving the branches around isn’t going to change the intensity. So doing LST as growers practice indoors isn’t worth your time.
Click to expand...
perfect, ty.
 
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Hossgrows

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#11
Galgrows said:
Uhh yes it does with photos, beautiful plant.
Click to expand...
Thanks.
 
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EastCoastOutdoor

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#12
Gaudy said:
My 2nd grow, first was indoor didnt LST. This is my 2nd grow and I was going to LST but im growing outdoors and wondering if it s worth the trumble since light coverage is so much better outside.

These are Autos if anyone is wondering.

View attachment 2480010
Click to expand...
There is no reason not to LST. I wouldn’t top them though. My experience in topping autos had been mostly negative.
 
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Thread info

Replies 11
Views 1,347
Started Jul 20, 2025
Latest post Jul 20, 2025
Starter Gaudy
Forum General Outdoor Growing

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