I’ve read on here from different people that they will turn the lights off before harvesting,my question is how long should you leave them in the dark before harvesting them and what do the plants gain from doing this
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Word on the Street 48 hours, Suppose to help Tricomb production 
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Thank you much
I also found some info on here about it I should have looked before asking
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No problem glad to assist Sharing the knowledge is a positive learning tool for both parties 
Scientifically speaking… It adds nothing. Some would say, lights on for the final 48 hours would actually produce more trichomes… And the science would support it.
Anecdotally… Many would say the lights out helps the plant finish out with more trichs and terps.
I would say just stop watering a few days before and harvest first thing in the morning after a normal light sequence when the plant is finished.
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@laf6502
Thanks you know I think your right at least there is no visual difference and I have a friend that’s been growing for years and what you said I’d basically the same thing he told me
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This is where u gonna get alll these people saying 48 hrs and drop the rh . Well yes but I actually seem to find if u stop the flush at like 2 days B4 lights out and let it sit for 72 hrs dark I get awesome tricombs and color and reason for not flushing it the last 2 days is let the bucket dry uppp or do like me I flush then 72 dark and 2 day B4 dark stop flush to dry the buckets it helps also in resin and etc
Thanks for the tips guys I appreciate it very much I ended up lights out for 3 days and I withheld water at the end as well
Doesn’t hurt to try and experiment. I’ve done just about everything and I really can’t tell much of a difference… maybe helps the plant finish out. But when a plant is finished, it’s finished. I just haven’t personally seen putting it in the dark for a couple days make any difference. Now if you’re doing it before the plant is finished I could see it making an impact. Personally the risk of rot and mold forming in some of the denser bigger buds is not worth the risk to me.
I can’t remember the last time I flushed a plant 
Honestly it all just sounds like gimmicks and maybe we are starting to overthink growing weeds.
That’s why I love living organic soil in big pots. I try to let the plant grow as naturally as possible and when they’re done they will stop uptaking nutrients and fade away.
I think I gain more in finishing phase by raising the lights and cooling the temps the last week rather than going dark for 2-3 days.
Different strokes….
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