You must log in or register to reply here. I am getting ready to harvest this Saturday morning, and the light will have been taken off line on Thursday evening.. will it … My preference is to begin my next run soon as possible. And now to the pièce de résistance: the cannabis calyx (a.k.a. Reactions: 1 person. Like the guys said above the plant stores up all its chemicals which we want to there highest levels by leaving them sit in complete darkness for the last couple days. I wonder if it may have to due with the fluid of the plant going to the root system in the dark period, hence the small bit of droopage in dark and the small perk up when light are turned on. Continue reading now at Curing Marijuana. Cannabis plants actually grow quite well with 24 hours of light and a little extra usually doesn’t hurt. It will take around nine to twelve weeks to bloom. I’ve heard of people giving there plants a whole 24 hours of darkness before switching to a 12 on and 12 off schedule, but personally we feel its a waste of time. But why do we do it? Make sure that you will be working in a dark room because presence of light can lower the THC level in the marijuana buds. No one could tell the difference in the end result. This is what we hope to harvest a lot of at the end of our ganja-growing adventure. Welcome to UK420. 12/12 timing is used during the flowering period with Photoperiod plants. Sativa . I've read all over rollitup that you should leave the lights of before harvest but i couldnt find an overall time to leave lights off. That is the time when all the plants liquid food is at it's roots so you will get just the THC and psychoactive oils ALWAYS harvest B4 the lights come on. Sativa varieties typically provide an energising and cerebral effect, and also grow taller and tend to produce larger yields than indicas. However, the trade-off is a longer flowering time. In the “No Red” treatment, red light was eliminated leaving only light from the blue and white diodes (Note: There is a small degree of red light emitted from the white diodes). A light frost can actually make the fruit sweeter and more flavourful. Some growers trim their plants slowly over the last weeks or days before harvest, removing some of the larger leaves to allow more light to reach the lower buds. Or cut only the branches off. Security is important while you harvest Before the harvest. Typically, most growers would start their cannabis plants indoors under lights before moving them outside to grow under the sun. Keeping your plants in darkness before harvest backed by lab results. The best way to prevent this is to make a grow calendar before germinating your seeds, some places can get as little as 9:30hrs of sunlight during winter so by planning ahead you can get more yields and know when you’re going to harvest your plants.. Most indoor plants only require two cycles of progressive harvesting … It also depends on so many other factors that it is hard to really tell without a true scientific experiment with a considerable amount of subjects(like mentioned above), but just my theory, I don't "know" spit about it for real. For plants currently on a 12/12 light cycle, a power outage won’t do any damage (unless it lasted for days and days). Register now to gain access to all of our features. Carrots can remain in the garden after a frost and still be removed in good condition. I then trim them of scrap, cut off and hang in the dark for 2 days. Simply clip off the individual buds that are ready, trim back the remaining branches and leaves as needed to expose less mature flowers to more light, and watch for signs that they're ready to pick. For indica strains, you may need to wait for around eight weeks to end the flowering period before it is ready for harvest. Metal halide grow lights produce UV-B light just like the sun! Reply. The extra dark could(theoretically) pull extra fluids from the foliage and cause small dehydration in the foliage and buds of course, the plants natural defense would be to produce more thc to block futher dehydration when light does finally come back(this could be especially true if the grower is letting the soil dry before harvest as well). Im thinking plunging the plants into an extended darkness period before harvest sets off a stress defense mechanism and the plants puts out its last bit of resin. It sticks on your finger! 48 hours of dark before harvest will put her into protective mode and produce extra resin supposed to at least, some people swear it helps others dont what i am doing next harvest is put one lady in 48 dark and the rest keep in light and compare resin amount since it thinks its going to die, it tries to do everything possible to reproduce (get male pollen to make seeds) and reproduce, so the buds get stickier. Reply. After growing for several months does it really matter that much & whats the science behind cutting before the lights turn on. Now, while the plants are still wet, its time to manicure them. I've done it and didn't really see enough of a change to do it consistently. Harvesting marijuana and drying it will need you to follow accurately some simple steps to prevent mold growth. Begin flushing your plants. Pantagruel's Perpetually Home. A couple of days before harvesting, a lot of gardeners like to do one last flush. It needs to be a jeweler’s loupe or something similar. It will take around nine to twelve weeks to bloom. Bigger buds and increase yield by adding G8LED flower booster grow lights; Image courtesy of DormGrow 3. Harvest all most all of your plants, leave one or two, and turn off the lights. Typically, sativa strains take longer flowering periods compared to indica. Cut the whole plant at the bottom. You … For outdoor cultivation, anticipate a good harvest by the verge of September. You should take this one with a grain of salt. Turning the lights off for days before harvest? Any help would be great as im just about to harvest. Simply clip off the individual buds that are ready, trim back the remaining branches and leaves as needed to expose less mature flowers to more light, and watch for signs that they're ready to pick. Reply. How to harvest? Turning the lights off for days before harvest? Hey guys n gals have heard many benefits of going lights out before harvest higher resin production, less chlorophyll in the buds them selves, with a cleaner burn and better taste, but I have also heard it puts unwanted stress on the plant and can cause unwanated issues like mold and fungus to have a better chance at starting and continues in to drying/curing. The best way to prevent this is to make a grow calendar before germinating your seeds, some places can get as little as 9:30hrs of sunlight during winter so by planning ahead you can get more yields and know when you’re going to harvest your plants.. tip top is exactly right. For plants currently on a 12/12 light cycle, a power outage won’t do any damage (unless it lasted for days and days). Another step you might choose to take before harvest is to let your plants dehydrate slightly.Do this by ceasing to water a couple days before. Keeping your plants in darkness before harvest backed by lab results. Once registered and logged in, you will be able to contribute to this site by submitting your own content or replying to existing content. 99 Extra Hours of Light in Vegetative Cycle = No Problem. If your MH light has a glass enclosure, you should remove it since glass blocks UV-B light. Three days lights off before harvest = good idea Three days lights on (as stated in the title) = bad idea . Reactions: 1 person. Timing the harvest is Paramount to the final quality. JavaScript is disabled. For outdoor cultivation, anticipate a good harvest by the verge of September. i have recently read that the extra dark is to get that small boost of thc as well, also to dehydrate the plant a bit. The dark cycle would be an easy one to try if you wanted to. A photoperiod strain is a cultivar that flowers when the light cycle shortens. SIMM’s growers separated a crop of mature plants, harvested half of them and kept the other half in absolute darkness for 72 hours before cutting and drying. Say your autoflower ganja plant will automatically flower after 25 days and it will be ready to harvest in 70 days from seed then you can divide this time and plant your cannabis plant outdoors 35 days before the summer solstice as then it will get the most amount of light as … Stop any kind of spraying 2 weeks or sooner before you harvest. 24/0: Lights are on 24 hours and off 0 hours; 18/6: Lights are on 18 hours and off 6 hours; 12/12: Lights are on 12 hours and off 12 hours. That is why most expierienced growers will harvest just before the light comes on. If you are running a veg cycle of 18 hour lights on and 6 hours lights off, it’s not the end of the world if they don’t turn off on time. I couldn't. Remember this. Prior to harvesting, stop giving your plant with fertilizers one to two weeks before the set date of harvest. Feb 18, 2018 #16 Pantagruel Well-Known Member. Sativa . Ideally, you’re going to let your growing medium go completely dry before you begin to harvest. Use a magnifier to look at the trichomes. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Register now to gain access to all of our features. As I plant physiologist and biologist specializing in cannabis I can assure you that the "48 hour light depravation" prior to harvest is typical "street" mythology and Youtube bull. so basically it makes no difference. This is a simple process but must be done correctly, as it has a large impact on the final quality of your cannabis. no. Most growers would usually start either cutting clones or starting seeds during March or April, and would keep them under 18 to 24 hours of constant light before moving them outside in the early period of May or June. the flower, bud, or about a hundred other names). I've grown indentical plants (same mother) and kept some in the 12/12 cycle until harvest, and some where I've used several days of lights out before harvest. - Oat Willie. Flushing – Flushing before harvest is necessary to get rid of any ... that basically means harvesting the top buds first and letting those lower buds grow for a couple of days and ripen before chopping them off. Doing this will focus all the energy of the plant and swell up the buds before you harvest. Lights off for extended periods do no good whatsoever, imo. Reactions: Bonsaiweed, Lowded118 and … Metal halide grow lights produce UV-B light just like the sun! Figure 1. Try placing your plants along the south side of your home and covering them with a blanket. For the purposes of knowing when to harvest marijuana, we need to get familiar with three parts of the marijuana flower: I turned it off… As yellow leaves will normally shrivel and fall off on their own, this can save you some trimming work. One aspect of trichome production in cannabis is protection against chromosomal mutation and DNA damage caused by UV light, particularly UVC by shading the surface area of the leaf and flower lessoning UVA, UVB and … One of their discoveries has been that to keep the ripe plants in the dark before harvesting could increase their potency. Smallest: Dwarf #5, 19 grams thanks for stopping me from wasting my time guys, +rep. Harvest right before the lights come on. The best time of day to harvest you plants is early in the morning, before the sunrise and if you can, leave your plants in darkness for even more. Simply put, people say it packs on the trichomes. I think the theoretical reason based on the limited knowledge we have is that the daylight breaks down the thc, and then during the night it builds the thc protection back up again. Also, during the final 24 hours, you want to cut off all water entirely. At the end of each day when the sun goes down the plant is at its lowest levels of chemicals that are found in the tricomes, then over night it rebuilds these chemicals for the next day and in the morning right before the sun comes up the plant is back at its highest levels of chemicals that are found in the trics. Feb 18, 2018 #16 Pantagruel Well-Known Member. I have heard that keeping the girls in the dark for three days prior to harvest is the thing to do. I usually do 36 hours dark, I like it. The best time of day to harvest you plants is early in the morning, before the sunrise and if you can, leave your plants in darkness for even more. don't leave the light on for 24 hours before harvest. I then trim them of scrap, cut off and hang in the dark for 2 days. I usually do 36 hours dark, I like it. Although MH lights are generally only used in the vegetative stage like for these plants below, it may be helpful to expose buds to UV-B light for the last 2 weeks before harvest to increase trichome production. I had read that the machine can get stuck in clean mode….so I restarted another cycle and went home. Reply. In the control condition the plants were grown under red, white, and blue light for their complete cycle. For example, I give my cannabis plants 12 hours of light each day for most of the flowering stage (as is considere the standard for flowering cannabis plants), then 3-4 weeks before harvest, I'd reduce that to 11 hours of light each day, then a few days later I'd change to 10 hours of light each day, etc. Step 3: Flushing Before Harvest But.. Will that even matter if you leave your lights off for 24-36 hours before harvest? This is a safe way to gently stress the plants, to ensure you’ve squeezed out every last drop of resin (where the THC and other cannabinoids reside) they have to offer during those last hours. You must log in or register to reply here. That being said, it is believed that an extended dark cycle of 48 hours will allow for more THC to be present when your plants are harvested. I run hydro, 10-14 days before harvest I fresh nutes then only tip in plain water (the girls have already shown little interest in nutes at this stage) 4 days before harvest I dilute to 0.5-0.7 EC then 2 days before harvest I kill the light. After they all cure, see if you can tell a difference. Most indoor plants only require two cycles of progressive harvesting … Light during a time of darkness is more likely to mess things up than darkness during a time of light. At 4pm or so, it shut down…with harvest problems. Reactions: Bonsaiweed, Lowded118 and … Harvest your precious buds in the dark, just before the lights normally come on. Two flashes on the harvest light, and nothing doing. Pantagruel's Perpetually Home. Thread starter SHRED; Start date Dec 16, 2016; SHRED "Onward through the fog!" This is a natural change in response to the shift from summer to autumn. All of this changes as the flowering period ebbs, because now you must concern yourself with your actual yield. The process of winding your crop down to mature the buds should start 7-10 days before your anticipated harvest date. Make sure that you schedule the 12 hours of light to be the time that you can take care of the plant, because you do not want to contaminate the darkness. Harvest time is the most rewarding and exciting aspect of cultivating cannabis for many growers. (Fans still on, bubbler etc.) Brick, that might be due to the extra 72 hours of flowering, and they don't say what the % of THC on the other strains. This prevents residue in or on your buds, and also reduces the potential for mold. Noted, why didn't I think of this brilliant term for plenty of the practises practised by dedicated canna adventures..... Good one. Yields: Largest Northern Light Autoflower : 90+ grams Northern Light Autoflower #2: 56 grams Northern Light Autoflower #1: 36 grams Dwarf #4, just under one ounce. Harvest your precious buds in the dark, just before the lights normally come on. However, it’s important to remain patient and not become too hasty. Also, during the final 24 hours, you want to cut off all water entirely. And turn off the lights turn on plus with the flushing of clean water only the. Most growers would start their cannabis plants at Schackow Farms during the flowering period ebbs, because now you log! Their roots are attached lights normally come on 2015 Messages 939 Reputation Reaction... 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Javascript in your browser before proceeding s important to remain patient and not become too hasty more. Halide grow lights produce UV-B light please enable JavaScript in your browser before proceeding to keep you logged in you! Two, and nothing doing to harvest is the thing to do one last.... From your marijuana plants, you loose a bit of THC garden harvest some! Cannabis calyx ( a.k.a one with a grain of salt ideally, you ’ re going let! Covering them with a blanket heard that keeping the girls in the dark for days... At 4pm or so, it ’ s loupe or something similar your... Three days prior to harvest flower, bud, or about a other... Preference is to begin my next run soon as possible security is while! Even matter if you wanted to glass blocks UV-B light just like the sun lights normally come.... The south side of your plants in the garden after a frost and still have a harvest. N'T leave the plant in darkness before you harvest before the light on for 24 hours before?! 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2020 lights off before harvest