48 Hours Of LIGHT Before Harvest!
48 Hours Of LIGHT Before Harvest!
In this video I talk about the common practice of doing 48 hours of darkness before harvest and why people are now doing 48 hours of light before harvest instead. This video features a clip of Dr. Bruce Bugbee on Garden Talk podcast episode 46. If you enjoyed this video click that thumbs up button 🙂
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Ever since I heard that THC levels drop in the dark, I have been moving my plants into 48 to 72 hours of light before Harvest. Continuous light so that it cannot sleep is the stress that helps it to really dense up, resin up, and finish getting ripe. Whether it be ice bathing the roots, splitting the stalk, or the light stress, it’s all just stress that causes the resin build up. I will also sometime close to harvest let my plant dry out to the point that it is drooping. I want the plant to think it’s about to die from no water. Then I will soak it. This also seems to help bring out the grease.
Follow up?
So I tried 72 hours of light and I keep my Temps at low 70s for the entire 72 hrs and boy oh boy what a boost in terps and trycomb development omg it’s night and day I’m so glad u proved this to be right I’m doing 72 hrs of light from now on super pumped thanks so much for all you do for this community you are amazing brother keep up the good work and stay lifted my friend!!!
im in the last week of flower i am going to try 67F temp and 48 hours light on
Im gonna try the 48 hrs of light b4 harvest ✌️ thanks Chris ☘️
Will you be trying 48 hours of light before harvest?
ah i will try 48 hours light before harvest great content thank you so much
Definitely be trying light now. Science says it all.
Im going to try 48hr of light before harvest this will be my 1st time harvest. thank you Mr. Grow with all you help my plants look great . John
Hell yah I cracked 10 of these at day 23!! Can’t wait for the beer can colas as advertised 😂! Looks killer cris been following you for over a year
I was just getting ready to do this! I am now chopping tomorrow 🪓🌱. Thanks for the knowledge 🧠
I’m not trying to knock what you’re doing, but this is incorrect according to Oaksterdam University. Age, maturation, & the time of day can affect the amount, & perhaps ratios of terpenes. One reason is their high evaporative rates at temps as low as 75°F 24°C. As plants mature their odor gets more intense & sometimes changes when they ripen. Plants are constantly producing terpenes, but they evaporate under pressure from sun or artificial light & rising temperatures. That means plants have more terpenes at the end of a dark period than after a full day of light. You can test this yourself. Check your plants odor early in the morning or right before your lights turn on & just before the sun sets or your lights turn off. You will find the odor stronger in the morning.
Also this scientists theory is that a plant won’t have enough energy to go longer than 12 hours without light is unheard of. Good luck with your grows.
2 days of any conditions at the end of flower isn’t going to do shit, not enough time.
Yep I’ll try it! Thanks
I thought something was off with the 48 hours of light, all i heard was people referring to a study conducting in the netherlands but not really explaining the full picture.
The main reason/purpose I’ve always read behind the darkness before harvest is to deplete the stored sugars and translocate them out the buds and into the roots. This wasn’t mentioned at all and I believe if Bruce went down this thought path his opinion might change.
My thoughts on the 48 hours of light would be don’t and here is why. The trichomes become amber the more they developed right? Well, if you let your plant grow until it has whatever % trichomes you want then it wouldn’t make any sense to just let it go an extra 2 days for trichome development because for every trichome that becomes more developed, 1 that is already developed can degrade to an amber one. Basically, you only stand the chance to increasing the % of over ripened trichomes. You simply shouldn’t have to do that. Nor should you try and time it out so you can do that, like its speeding up the flowering process or something. When you been growing for 4 months and have another month – month half of drying and curing to do, what really is 2 days? I plan to do my harvest in the morning so my lights will have been one for 4 hours that day. Just to wake them up and live’in them up a little bit before the big cut. This is a good video though and I appreciate you trying. I’m curious if it something you did eventually try and decide to keep doing? It certainly feels like hippey science lol but someone has to try it I guess!
So reduce light intensity by half, increase lights from 12 to 24 hours, reduce temperature.
I have a jack herer auto I just finished 24hr light now into 48hr dark period. Will be chopping Sunday! Guess we’ll see?
Went dark for 3hrs saw this video and turned them back on going for 48 hour light then harvest !
How did u make out with the 24 hours of light did u ever end up seeing a difference I would really love to know thanks Chris you the man brother love everything you guys do!!! 💚 stay lifted my friend 🙏
there could still be something to the darkness before harvest though; if the thc turning to cbn requires light, having a prolonged period of darkness before harvest could mean theres still more thc produced, but none turned into cbn, which would result in more potency comapred to harvesting immediately.
also, mending with a prolonged period of light into a prolonged period of darkness (or vice versa) would also be interesting ^^
Gd 1 bro
I’ve got 2 weeks left before chop. I might try this
A plant uses what it makes during the day at night and becomes accustomed to how much energy it makes a day… giving light would be better
what if you are already using 24 hrs of light from the
beginning
Definitely going to be trying 48 hours of lights with cool Temps next time I grow.
Totally agree and glad the Dr Bugbee brought it to light. (Best Garden Talk eps). Being a C3 plant, cannabis does everything it needs to do, to grow, during lights on. The only reason to have any dark period, for photos, is to trigger and continue the flowering phase. Great video Chris.
I’ve been growing for about 2 years now. I’ve always done the darkness method since the beginning. However after watching this video I think I’m going to give the 2 days of light a shot. Why not right?
Lights on and reduce temperature definitely!!
Boy, I’m glad I’ve found this video just about a week before I’m planning on harvesting my plant.
I love it when my buds grow all chunky like that. Dr. Bruce is the man, I learned a lot of what I know from Dr. Bruce Bugsby.
How were your results with 48 hours of light?
Makes sense to me.
Bruce is a legend
💕✌🏼😎 awesome info
So when is the actual best window to harvest? 🤷🏻♂️
"What are ur thoughts" i think 6 decades of dumb was reversed within 3mins of talking to a plant scientist…you should all be embarrassed
Bruce is a F%@$@&# legend i WILL BE doing more light at the end
Please help!!! 🙏🏽 Power outage lasting more than 43 hours (still out) 🤯 Last two weeks of flowering!! Should I just harvest early or continue lighting schedule when power is restored????
*More info: Lights came on that day and went off at mid day, and I’m not certain about the genetics
Loved the podcast with Dr Bruce Bugby. He basically destroyed all the myths of growing. I use to flush my plants however I did stop flushing some time ago, but the topic of synthetic vs organic was awesome. I’ll definitely try the 48 hrs of light on my current grow. Thanks for all the info that you put out. I was just curious if you were in Cali because I too live in the desert and yes its dry here.
Your the man Chris
Thanks for all that you do🤘
I been doing 48 hours of light for years and they called me crazy lol but my plants said other .. please do try
I am a breeder and will absolutely try the 48 light and ice to see how it goes
Any updates?? I’m going to try 48hrs or light
result result result plzzzzzzz
Anybody getting results one way or the other?
I’ve never understood the bro science. Thanks for this.
OK for an outdoor grower what does this mean end of the day? I have been harvesting in the AM dark haha, and it drives the hubs crazy.
bro its the wrong way of thinking about it. its about death, the plant realize the close death and in the act of dying the plant try to get attention to any kind of animal or human, to spread some seeds of it. wich it is producing at somepoint of stress level anyways