how many hours of darkness does weed need to flower outdoors

John400HPS

John400HPS

Well-Known Member
i know the standard for indoor growth is to switch to 12/12 but is that the same for outdoor growth. This is crucial to my grow because we have cold automs and id like to grow a sativa which takes 13 weeks to flower. Where i live it starts getting into the 40s at night as early as october. Does this make sativa's like arjans ultra haze and nl haze mist ungrowable?
 
mygirls

mygirls

Medical Marijuana (MOD)
John400HPS said:
i know the standard for indoor growth is to switch to 12/12 but is that the same for outdoor growth. This is crucial to my grow because we have cold automs and id like to grow a sativa which takes 13 weeks to flower. Where i live it starts getting into the 40s at night as early as october. Does this make sativa's like arjans ultra haze and nl haze mist ungrowable?
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im sorry but come on now what is with all theis dumb ?'s. you can't be 4real because if you grow indoors then you already nothe answer to your own ?. come on dude. get with it. you no as well as all the others that WHAT ? we are trying to match mother nature as to the amount of sunlight our plant get. im in :o over that ?.:spew:
 
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StonerFishy

Well-Known Member
well some peoples plants flower before 12/12 and they are not auto flowering. hes just wondering what the absolute least amount of time of darkness u need. sorry i ccant help u john i just hate when people try and put u down for a question... its the forums like no1 in any forum looks shit up before asken questions.. they just ask questions no matter what website u go on and if u cant deal with it then maybe ta difwebsite mygirls? im not looken to start an argument with u mygirls but hes asken a question he dont know and either does the search function because its crap
 
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frmrboi

Well-Known Member
John400HPS said:
Does this make sativa's like arjans ultra haze and nl haze mist ungrowable?
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pretty much, unless you can force them into flowering earliy by bringing them indoors or covering them to shorten the daylight. Remember just because it's light out in October doesn't mean the sunshine has enough power to either grow or ripen trichomes in Northern latitudes, the sun is too low in the horizon.
Anyways back to your question, 10 hours of darkness will trigger flowering in most weed.
 
Brick Top

Brick Top

New Member
John400HPS said:
i know the standard for indoor growth is to switch to 12/12 but is that the same for outdoor growth. This is crucial to my grow because we have cold automs and id like to grow a sativa which takes 13 weeks to flower. Where i live it starts getting into the 40s at night as early as october. Does this make sativa's like arjans ultra haze and nl haze mist ungrowable?
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Unless you can create an artificially longer night earlier than Mother Nature will turn to a 12/12 and shorter light cycle by either bringing your plants inside if they are in pots of it you can do something like set 4 fence posts around your grow area and cover your plants with a THICK tarp to totally block out the sunlight any sativa or mostly sativa strain/hybrid is not what you should be attempting to grow outdoors where you live.

You either have to grow it inside or if you want to grow it outside move to the Southern U.S. or even farther South.
 
James Bond

James Bond

Well-Known Member
Brick Top said:
You either have to grow it inside or if you want to grow it outside move to the Southern U.S. or even farther South.
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Correct me if I'm wrong, but I thought BC had excellent weed? I thought this may be relevant considering latitude. Or is it all done indoors?
 
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DR.LEMON

Well-Known Member
John400HPS said:
i know the standard for indoor growth is to switch to 12/12 but is that the same for outdoor growth. This is crucial to my grow because we have cold automs and id like to grow a sativa which takes 13 weeks to flower. Where i live it starts getting into the 40s at night as early as october. Does this make sativa's like arjans ultra haze and nl haze mist ungrowable?
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:leaf: if your in the north like me and have neighbors lights all around you and you want to force flower i use black trash bags with pin holes poked in the bags put um over it for at least a week maybe more :weed: hasent failed me yet
 
Istaysmoking

Istaysmoking

Well-Known Member
mygirls said:
im sorry but come on now what is with all theis dumb ?'s. you can't be 4real because if you grow indoors then you already nothe answer to your own ?. come on dude. get with it. you no as well as all the others that WHAT ? we are trying to match mother nature as to the amount of sunlight our plant get. im in :o over that ?.:spew:
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lol @ you talking shit and then being wrong. Plants outdoor do not wait until 12/12 to flower. If that was the case I'd be waiting until October for 12/12 to come and by that time my plants are dried cured and being smoked. So before you jump down sombody throat STFU and think about what your saying. Like somebody else stated in this thread its usally more like 10 hours of darkness with plants outdoors.
 
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NiceJoeGreen

New Member
mygirls said:
im sorry but come on now what is with all theis dumb ?'s. you can't be 4real because if you grow indoors then you already nothe answer to your own ?. come on dude. get with it. you no as well as all the others that WHAT ? we are trying to match mother nature as to the amount of sunlight our plant get. im in :o over that ?.:spew:
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NiceJoeGreen

New Member
No dumb questions just dumb answers. And that sir was a stupid answer you obviously have no idea so keep your two cents to yourself
 
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NiceJoeGreen

New Member
Istaysmoking said:
lol @ you talking shit and then being wrong. Plants outdoor do not wait until 12/12 to flower. If that was the case I'd be waiting until October for 12/12 to come and by that time my plants are dried cured and being smoked. So before you jump down sombody throat STFU and think about what your saying. Like somebody else stated in this thread its usally more like 10 hours of darkness with plants outdoors.
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