(Autoflower) Light Schedule Change Effects? Question

  • Thread starter lizxfun
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lizxfun

lizxfun

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Hi everyone, my first post here and my first grow ever! All going well.

So I'm a day or two away from harvesting a photo-period plant in my grow room. It's on a 12/12 cycle. I have 3 more photo-periods ready to be put inside the grow tent, I've been waiting on my first plant to finish to put them in, to due to limited grow space/light cycle.

a couple weeks ago, I put a few auto flowers in the grow room, without really planning for them much 😅. My question is will switching the autos from 12/12 to 18/6(Veg hours), cause to much stress on them? Or would it be worth mainting the light cycle they're accustomed to.

Flowering strain - Highlander - Ocean Grown Seeds

Autos -
Gorilla Cookies Auto
Purple Haze Auto
Purple Lemonade Auto

Coast of Maine - Platinum Growers Mix
 
Autoflower light schedule change effects question
Autoflower light schedule change effects question 2
Autoflower light schedule change effects question 3
dbrzz

dbrzz

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Autos dont care about light schedules. The more light hours you provide the faster they will grow. However, running 24 hrs no dark period, is a waste of electricity, and costly in the long run. The extra growth vs the cost factor of electricity, becomes very negative running more than 18/6 light schedules. 16/8 or 18/6 are the most energy efficient light schedules if cost per gram of bud produced is a factor for your grow. I hope this helps you in your grow.
 
BirdLaw86

BirdLaw86

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To follow up, can autos start off 18/6 and switch to 12/12 in a productive manner? Theyd be going into a tent with a photo which is why i ask.
 
Badinfluence

Badinfluence

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To follow up, can autos start off 18/6 and switch to 12/12 in a productive manner? Theyd be going into a tent with a photo which is why i ask.
Great question, I asked this locally and got two answers....that's why I'm here. That's crazy. I just joined to pose the question. Thank you
 
Edinburgh

Edinburgh

2,684
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Probably not, though sometimes I cut cycle to 12/12, leave them alone or add more time under bloom light I doubt it will affect them to severely. Pic is a 86 day auto though I did not cut cycle, usually cut cycle when auto is clearly female but will not flower.
 
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Badinfluence

Badinfluence

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The thing that makes me wonder is I did a Bonsai plant for fun and when it was only 10 inches I flipped it to flower and it kicked in. Plant was 14 inches tall with like a half ounce harvest. However it was not an autoflower.
So with that in mind I've been growing plants to where I feel they are manageable in my tent space by just vegging until I want them to flower. Usually around 5-6 weeks. (25-30 inches tall). Since a lot of the Humboldt seeds I wanna grow are autos, I want to know if I can force flip them. Or are they like a lite bank, they need x amount to be done....?
 
lvstealth

lvstealth

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i did this!

ok, if you start an auto in 18/6 and swap it to 12/12, it will be smaller, but do ok.

if you start and end an auto in 12/12 it will grow up and make a few buds and thats it.

if you start in 12/12 and in about 2 weeks go to 18/6 it will be just fine.

they "flip" when they want to. mostly about 3 weeks give or take. ive had as early as 2wks and 3days.

i found some tricks to stall them, but that isnt the question.

start and end your autos in 18/6. that works best for yield.
 

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