ITheNorth
Well-Known Member
Can someone clarify whether I need to adjust my light schedule to 12/12 during flowering stage of Autoflower strains or leave on 18/6?
Auto light schedule?
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Nunyabiz
Well-Known Member
No you do not.
18/6 is fine, 20/4 might even be better depending on cultivar and how much PAR your light puts out
18/6 is fine, 20/4 might even be better depending on cultivar and how much PAR your light puts out
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ITheNorth
Well-Known Member
Thank you
i find 20/4 is the magic number
Why is 20/4 better than 18/6? I'm a new grower and just grew my first two plants and they were autos and I ran them at 18/6. Is there any benefit to run them 20/4 instead?
depends on how much power of light you use , if you use 18/6 and it works stick to it , i like 20/4 so they get 28 hours more light a week and works for me , most banks will tell you to use 20/4 , i used to run 24/7
SoGnotSOG321
Well-Known Member
No. Autos genetics dont rely on 12/12 flip. I am probably wrong but the Northern hemisphere sub arctic region where it evolved used the longer length summer days to develop rapidly into maturity and finish flower development (seeds) before frosts killed it off. This period at its extreme matches what you see in your autoflower plants. Those 60ish days either side of the summer solstice describes its life cycle. Meant to add, the longer 20 plus hours matches what environment they thrived most in out in the wild, I'm not absolutely positive about the 24hr but I wouldn't dismiss it at all because there are some regions where autoflower plants might have had the right environment to flourish in 24 hour light as there is.
