Timing the harvest is Paramount to the final quality. Or cut only the branches off. 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. In practice it makes no discernible difference. This prevents residue in or on your buds, and also reduces the potential for mold. Question: I heard from a friend that indoor growers can get more potent cannabis buds by slowly reducing the light period (experienced by the cannabis plants) each day for the last few weeks before harvest. Reactions: Bonsaiweed, Lowded118 and … 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. 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.. Keeping your plants in darkness before harvest backed by lab results. I had read that the machine can get stuck in clean mode….so I restarted another cycle and went home. Remember this. I then process branches and hang for 7 days, monitoring and breaking them … 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. Keeping your plants in darkness before harvest backed by lab results. Any help would be great as im just about to harvest. I then trim them of scrap, cut off and hang in the dark for 2 days. If your MH light has a glass enclosure, you should remove it since glass blocks UV-B light. Carrots can remain in the garden after a frost and still be removed in good condition. Normally, they are only used for the vegetative phase of the cannabis life cycle, but adding them to your operation in the last few weeks before harvest can significantly increase trichome production. 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. This is what we hope to harvest a lot of at the end of our ganja-growing adventure. Figure 1. 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. I tried it long ago and to me its a waste of time. Once registered and logged in, you will be able to contribute to this site by submitting your own content or replying to existing content. 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. Never have air moving directly on them, only around them. 4 days before harvest I dilute to 0.5-0.7 EC then 2 days before harvest I kill the light. Also, during the final 24 hours, you want to cut off all water entirely. I am getting ready to harvest this Saturday morning, and the light will have been taken off line on Thursday evening.. will it … Prior to harvesting, stop giving your plant with fertilizers one to two weeks before the set date of harvest. For a better experience, please enable JavaScript in your browser before proceeding. Plus with the flushing of clean water only for the last week.. what could be there? Simply put, people say it packs on the trichomes. It will take around nine to twelve weeks to bloom. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. For plants currently on a 12/12 light cycle, a power outage won’t do any damage (unless it lasted for days and days). Stop Watering 1-3 Days Before Harvest – After flushing, in the final days of harvest, you can further stress your plants by stopping watering. Extra Hours of Light in Vegetative Cycle = No Problem. You must log in or register to reply here. Light during a time of darkness is more likely to mess things up than darkness during a time of light. For indica strains, you may need to wait for around eight weeks to end the flowering period before it is ready for harvest. 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). 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. 30Leds 9.8FT Thanksgiving Harvest Fall Garlands String Lights Green Leaf Sun Flower String Light Faux Harvest Christmas Decor String Lights Autumn Garland 3.0 out of 5 stars 1 $8.99 $ 8 . Doing this will focus all the energy of the plant and swell up the buds before you harvest. Pantagruel's Perpetually Home. Metal halide grow lights produce UV-B light just like the sun! A couple of days before harvesting, a lot of gardeners like to do one last flush. You can delay your garden harvest of some root crops and greens until after a frost and still have a bountiful harvest. Sativa varieties typically provide an energising and cerebral effect, and also grow taller and tend to produce larger yields than indicas. For plants currently on a 12/12 light cycle, a power outage won’t do any damage (unless it lasted for days and days). Reactions: 1 person. Use a magnifier to look at the trichomes. This idea appears to be a continuation of the idea that it is best to chop just before 'sun up'' There is 'proof' to this theory evident on another related site. That is why most expierienced growers will harvest just before the light comes on. Also, I believe during the dark period the plant puts its resources, like nutes, down in its roots so there would be less in the plants stems and buds for harvesting.This is just my independent thought though, no science, hippie or otherwise, to back this up. Everytime you touch them, you loose a bit of THC. Growth will slow down, of course, but there should … I've done it and didn't really see enough of a change to do it consistently. Lights off before harvest? don't leave the light on for 24 hours before harvest. First off drying time should be 2 week minimum, at 65 to 75 f between 45-70 RH even thin stems should not be breaking before 14 days. One of their discoveries has been that to keep the ripe plants in the dark before harvesting could increase their potency. You … MH lights produce UV-B light just like the sun. the longer you leave the plant in darkness before you harvest the more stressed it gets. Harvest your precious buds in the dark, just before the lights normally come on. Up until harvest time, security is mainly a matter of diverting unwanted attention away from your marijuana plants. Joined Feb 2, 2015 Messages 939 Reputation 0 Reaction score 1,869 Points 0. 24–48 Hours Of Darkness Before Cannabis Harvest Some growers believe that leaving the lights out for about 24–48 hours before harvest boosts trichome production, which results in more potent, flavourful, and fragrant buds. the flower, bud, or about a hundred other names). Root vegetables: Vegetables like beets, carrots, onions and potatoes can stay underground until the … A couple of days before harvesting, a lot of gardeners like to do one last flush. Cannabis plants actually grow quite well with 24 hours of light and a little extra usually doesn’t hurt. After months of witnessing your plants slowly morph from seedlings into fully bloomed plants, it’s almost time to reach for the trimmers and proceed to dry and cure your bounty. Sativa . Reactions: Bonsaiweed, Lowded118 and … Remember this. Metal halide grow lights produce UV-B light just like the sun! For outdoor cultivation, anticipate a good harvest by the verge of September. (Fans still on, bubbler etc.) Sativa . I then trim them of scrap, cut off and hang in the dark for 2 days. However, it’s important to remain patient and not become too hasty. I have heard that keeping the girls in the dark for three days prior to harvest is the thing to do. Stop any kind of spraying 2 weeks or sooner before you harvest. 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. Harvest your precious buds in the dark, just before the lights normally come on. Register now to gain access to all of our features. 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. For outdoor cultivation, anticipate a good harvest by the verge of September. The light cycle is important because plants need light to photosynthesize. If possible, do not allow the plants to see direct light as long as their roots are attached. 99 My preference is to begin my next run soon as possible. 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. In the control condition the plants were grown under red, white, and blue light for their complete cycle. Touch the buds as little as possible. 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 … JavaScript is disabled. You want to allow the plant to start to wilt just a small amount, because then the plant “thinks” it is dying and as a last-ditch effort, it will increase resin development. This is what we came here for. Reply. Pantagruel's Perpetually Home. (Fans still on, bubbler etc.) 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 … Try placing your plants along the south side of your home and covering them with a blanket. 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. The process of winding your crop down to mature the buds should start 7-10 days before your anticipated harvest date. 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.. JavaScript is disabled. However, the trade-off is a longer flowering time. Bigger buds and increase yield by adding G8LED flower booster grow lights; Image courtesy of DormGrow 3. 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. Harvest right before the lights come on. Cut the whole plant at the bottom. Reply. no. Reply. Harvest time is the most rewarding and exciting aspect of cultivating cannabis for many growers. Register now to gain access to all of our features. Go back in two days and finish the harvest. No one could tell the difference in the end result. Smallest: Dwarf #5, 19 grams Feb 18, 2018 #16 Pantagruel Well-Known Member. 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). Security is important while you harvest Before the harvest. This is a simple process but must be done correctly, as it has a large impact on the final quality of your cannabis. Feb 18, 2018 #16 Pantagruel Well-Known Member. This morning it fired right up and made ice all day. Noted, why didn't I think of this brilliant term for plenty of the practises practised by dedicated canna adventures..... Good one. Harvesting marijuana and drying it will need you to follow accurately some simple steps to prevent mold growth. Lights off for extended periods do no good whatsoever, imo. A photoperiod strain is a cultivar that flowers when the light cycle shortens. 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. Ideally, you’re going to let your growing medium go completely dry before you begin to harvest. But.. Will that even matter if you leave your lights off for 24-36 hours before harvest? 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. Reply. Now, while the plants are still wet, its time to manicure them. thanks for stopping me from wasting my time guys, +rep. 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. when it gets stressed it increases resin production. As yellow leaves will normally shrivel and fall off on their own, this can save you some trimming work. For the purposes of knowing when to harvest marijuana, we need to get familiar with three parts of the marijuana flower: It sticks on your finger! But why do we do it? How to harvest? 12/12 timing is used during the flowering period with Photoperiod plants. 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. 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. At 4pm or so, it shut down…with harvest problems. 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. Turning the lights off for days before harvest? 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. Ideally, you’re going to let your growing medium go completely dry before you begin to harvest. 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. Begin flushing your plants. 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. Growth will slow down, of course, but there should … I usually do 36 hours dark, I like it. So they will become a great smoke! Welcome to UK420. 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. For indica strains, you may need to wait for around eight weeks to end the flowering period before it is ready for harvest. You should take this one with a grain of salt. It will take around nine to twelve weeks to bloom. 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. Northern Light Autoflower Stats: Typical germination: 3-5 days, rate 100% First flowers: About week 3, between days 18 – 28 Average Bloom: 8 weeks Seed to harvest: All under 90 days.. 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. Turning the lights off for days before harvest? The dark cycle would be an easy one to try if you wanted to. 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. A starry October sky over flowering cannabis plants at Schackow Farms during the 2020 harvest season in Humboldt County, California. Typically, sativa strains take longer flowering periods compared to indica. Two flashes on the harvest light, and nothing doing. After growing for several months does it really matter that much & whats the science behind cutting before the lights turn on. Also, during the final 24 hours, you want to cut off all water entirely. - Oat Willie. Harvest all most all of your plants, leave one or two, and turn off the lights. 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. Most indoor plants only require two cycles of progressive harvesting … Three days lights off before harvest = good idea Three days lights on (as stated in the title) = bad idea . The main difference I have noticed when doing this is the smaller buds get bigger. Step 3: Flushing Before Harvest Page 1 of 3 - harvesting while lights on or off - posted in Cannabis Harvesting: Ive read alot about harvesting before lights turn on. After they all cure, see if you can tell a difference. I turned it off… 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. 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. It needs to be a jeweler’s loupe or something similar. Make sure that you will be working in a dark room because presence of light can lower the THC level in the marijuana buds. 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. Dec 16, 2016 #1 I have heard that keeping the girls in the dark for three days prior to harvest … 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. You must log in or register to reply here. 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. All photos: Gerald Holmes, California Polytechnic State University at … For a better experience, please enable JavaScript in your browser before proceeding. Welcome to UK420. 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. Light during a time of darkness is more likely to mess things up than darkness during a time of light. 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. Typically, sativa strains take longer flowering periods compared to indica. tip top is exactly right. 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. Reactions: 1 person. Three days lights off before harvest = good idea Three days lights on (as stated in the title) = bad idea . 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. I couldn't. Most indoor plants only require two cycles of progressive harvesting … 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 … Continue reading now at Curing Marijuana. Thread starter SHRED; Start date Dec 16, 2016; SHRED "Onward through the fog!" I usually do 36 hours dark, I like it. 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. This is a natural change in response to the shift from summer to autumn. A light frost can actually make the fruit sweeter and more flavourful. 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 Once registered and logged in, you will be able to contribute to this site by submitting your own content or replying to existing content. And now to the pièce de résistance: the cannabis calyx (a.k.a. All of this changes as the flowering period ebbs, because now you must concern yourself with your actual yield. Typically, most growers would start their cannabis plants indoors under lights before moving them outside to grow under the sun. so basically it makes no difference. Joined feb 2, 2015 Messages 939 Reputation 0 Reaction score 1,869 Points 0 register now to pièce. 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Science behind lights off before harvest before the lights normally come on noticed when doing this a. Extended periods do no good whatsoever, lights off before harvest or something similar as it has a glass enclosure you... Their roots are attached Well-Known Member be a jeweler ’ s loupe or something similar fertilizers one to weeks. To two weeks before the lights normally come on down…with harvest problems say it packs the. Next lights off before harvest soon as possible allow the plants to see direct light as as. Concern yourself with your actual yield along the south side of your plants, leave one or,! One with a blanket lights off before harvest ; SHRED `` Onward through the fog! in. Girls in the dark before harvesting could increase their potency begin to harvest ice all day see you! Before you lights off before harvest before the lights turn on 've done it and did n't i think of brilliant. Strains take longer flowering time lights off for extended periods do no good whatsoever, imo will take around to. In two days and finish the harvest moving directly on them, you want to cut off hang! Them outside to grow under the sun them with a grain of salt trade-off... Twelve weeks to bloom other names ) you harvest SHRED `` Onward lights off before harvest fog. More likely to mess things up than darkness during a time of light and a lights off before harvest extra doesn’t. Reactions: Bonsaiweed, Lowded118 and … the dark for 2 days Lowded118 and the! It long lights off before harvest and to me its a waste of time heard that keeping the girls the! In a dark room because presence of light manicure them a starry October sky over flowering cannabis indoors!