Ok,so my neighbor wants me to start a few photos for his outdoor grow.My concern was triggering flower when I move them from my grow to his backyard.My current light schedule is 6:00 pm-12:00 pm.My plan is to put the plants outside late morning which means the plants will receive an extra 9 hours of light. +- 27 hrs of continuous light.Is my approach sound? This shouldn't trigger anything? What would be better? Thanks.
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Photo period plant question.
- Thread starter wangotango321
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You can veg plants with 24 hours of light. Are you talking about putting the plants outside in the morning and then back into your tent, with the lights on, at night?
Thanks JP. No after the the plants are a couple weeks old they go out forever.
Why not just keep them in the tent until they're ready to harden off to be outside?
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Usually it takes 3 weeks before cannabis become sexually mature enough to flower.
At the moment you are giving them 18 hours of light!
Flowering will be triggered by less than 12 hours light!
Unless you are in the southern hemisphere (where it is currently Autumn heading in to winter) you should be good!
When the Northern Hemisphere has a spring Equinox, the Southern Hemisphere has it autumn Equinox.
Post a spring Equinox the days get longer than 12 hours.
Post a Autumn Equinox the day are shorter than 12 hours.
On the equator day are 12 hours and night are 12 hour year round, this why tropical Sativas flower so long 20 weeks or more sometimes, because there is a constant light period everyday, the cannabis plant can't tell if there is a male also flowering near by, so it hedges it;s bets by flowering a long time.
Conversely Ruderalis hit maturity at approx 3 weeks and then automatically flowers. This is because nearer the Arctic the summer is very short and if the plant waited to start flowering at 12/12 it would be too dark to quickly for the plant to finish flowering and produce seeds.
So if you are giving them more than 12 hours light and they then go outside in to more than 12 hours light they should be ok.
They might find the difference in on/off times a bit weird but should acclimatise to it ok!
At the moment you are giving them 18 hours of light!
Flowering will be triggered by less than 12 hours light!
Unless you are in the southern hemisphere (where it is currently Autumn heading in to winter) you should be good!
When the Northern Hemisphere has a spring Equinox, the Southern Hemisphere has it autumn Equinox.
Post a spring Equinox the days get longer than 12 hours.
Post a Autumn Equinox the day are shorter than 12 hours.
On the equator day are 12 hours and night are 12 hour year round, this why tropical Sativas flower so long 20 weeks or more sometimes, because there is a constant light period everyday, the cannabis plant can't tell if there is a male also flowering near by, so it hedges it;s bets by flowering a long time.
Conversely Ruderalis hit maturity at approx 3 weeks and then automatically flowers. This is because nearer the Arctic the summer is very short and if the plant waited to start flowering at 12/12 it would be too dark to quickly for the plant to finish flowering and produce seeds.
So if you are giving them more than 12 hours light and they then go outside in to more than 12 hours light they should be ok.
They might find the difference in on/off times a bit weird but should acclimatise to it ok!
Thanks Arty,and good luck with your outdoor efforts.BTW I'm in Ohio,US, so way north.
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