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Thread: How do I regenerate/ rejuvenate/ reveg a plant after harvest?

  1. #1
    420 Member Medical Marijuana's Avatar
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    How do I regenerate/ rejuvenate/ reveg a plant after harvest?

    After the buds are harvested, you may realize just how much you want to perpetuate a plant you neglected to take cuttings from. Cut the main stalk down to the point where below several growth tips or buds are remaining. Return the plant to a vegetative fertilizer and photoperiod. Over the next several weeks, the plant will elongate and devlop new upward growth. It is very important not to overwater the plant after it has been cut back. The reduced above ground plant structure is still being fed by the entire existing root system, which can cause an excessive amount of water uptake and the resultant stress associated. The use of products containing ammonium form nitrogen, such as chicken manure or Genesis Formula Grow 2 will encourage rapid growth and stem elongation. Trace element supplemenation, co2 and 24 hour lighting are helpful.

  2. #2
    420 Member QUEENBUD00's Avatar
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    Re: How do I regenerate/ rejuvenate/ reveg a plant after harvest?

    So unless we have an indoors growroom,theres noway i can reguvenate a plant since we cannot control the light.

  3. #3
    Registered User superbluehaze's Avatar
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    Re: How do I regenerate/ rejuvenate/ reveg a plant after harvest?

    it does have to be indoors, my friend or at least you must be able to give the plant a long day;here she is now:



    happy growing
    Last edited by 420 Girl; 09-16-2010 at 10:42 PM.

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    420 Member Stonercool's Avatar
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    Re: How do I regenerate/ rejuvenate/ reveg a plant after harvest?

    Yes, indoors is the only way to go. You can control everything from the light to the nutes to the temperature.

    The outdoors is certainly a great place to grow naturally, but when you want super duper results, you need to move things inside..........

  5. #5
    Plant and Nug of the Month Winner (July 10') Hogdady's Avatar
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    Re: How do I regenerate/ rejuvenate/ reveg a plant after harvest?

    Quote Originally Posted by Stonercool View Post
    The outdoors is certainly a great place to grow naturally, but when you want super duper results, you need to move things inside..........
    Gotta disagree here. When's the last time you saw 2 lbs dried yield from one indoor plant? Mother Nature does it best!



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    Registered User superbluehaze's Avatar
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    Re: How do I regenerate/ rejuvenate/ reveg a plant after harvest?

    Yes, indoors is the only way to go. You can control everything from the light to the nutes to the temperature.

    The outdoors is certainly a great place to grow naturally, but when you want super duper results, you need to move things inside..........


    Perhaps, but places like Hawaii where the climate is milder then I have heard of plants that are outdoors and are well over 2 years old and have been flowered quite a few times.
    Where I live in Australia, we have 6 seasons; here it would be possible outdoors, especially in Queensland or the north of New South Wales, where the climate is mild.

    For most of us, it has to be indoors, as it is best to use more than the long day cycle(and the plants to respond better, especially in the early stages of regeneration to 24 hours of light) but warmth also is a trigger for the plant to revert back to growth.

    It is a shame to discard a plant that already has an established root system and main stem; once reverted all the plants energy goes into producing stems and green growth.
    I am pleased you find my post of interest.
    happy growing
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  7. #7
    Registered User superbluehaze's Avatar
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    Re: How do I regenerate/ rejuvenate/ reveg a plant after harvest?

    Gotta disagree here. When's the last time you saw 2 lbs dried yield from one indoor plant? Mother Nature does it best!

    I cannot argue with that. spot on! Any form of artificial light is paled by the sun.

    Without the sun we all are lost, for the plants love to bathed in its light,
    but some must run and hide,
    and never know its might, to grow and bloom;
    Under the midnight sun they bloom, and spread their wings and take flight

    i am pleased you found my post interesting,
    happy growing

  8. #8
    420 Member Growheart's Avatar
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    Re: How do I regenerate/ rejuvenate/ reveg a plant after harvest?

    :focus::focus:

    Anyone have any more info on regeneration and the chances it will succeed ? I have currently 7 plants from high quality bag seed, 4 of them are looking very clone-worthy and nothing was taken during veg (im very inexperienced still). I will be definitely trying to re-veg these ladies after harvest.

    Would using molasses or leaving the lights off for a few days before harvest affect anything?

  9. #9
    420 Member Growheart's Avatar
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    Re: How do I regenerate/ rejuvenate/ reveg a plant after harvest?

    Quote Originally Posted by superbluehaze View Post
    Perhaps, but places like Hawaii where the climate is milder then I have heard of plants that are outdoors and are well over 2 years old and have been flowered quite a few times.
    Where I live in Australia, we have 6 seasons; here it would be possible outdoors, especially in Queensland or the north of New South Wales, where the climate is mild.

    For most of us, it has to be indoors, as it is best to use more than the long day cycle(and the plants to respond better, especially in the early stages of regeneration to 24 hours of light) but warmth also is a trigger for the plant to revert back to growth.

    It is a shame to discard a plant that already has an established root system and main stem; once reverted all the plants energy goes into producing stems and green growth.
    I am pleased you find my post of interest.
    happy growing
    Thats pretty cool actually, did not know they did that outdoors but I guess climate rules all!

  10. #10
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    Re: How do I regenerate/ rejuvenate/ reveg a plant after harvest?

    I once had a plant go hermie halfway through flowering. I whacked it out of my scrog screen without any thought. Then I discovered I had no clones and I very much did NOT want to lose the strain. Plus, knowing I could MAKE it go hermie at will gave me a tool for producing feminized seeds, so I wanted to keep it BAD. After a lot of quick research I was able to salvage the plant. Luckily I had left some greenery on it, which is pretty much the base requirement.

    Here is the best way to successfully reveg a plant. When you harvest, whack off the top third of the plant. Don't take anything from the bottom third - at all. If you're like me though (I do scrog), the bottom third has nothing on it anyway, so... The middle third is the key. Leave small buds at the end of each branch you keep. Doing this keeps the "blood vessels" working and keeps that branch alive. Any branch you leave with nothing just dies. It is critical to leave enough greenery for the plant to survive until reveg kicks in and it starts putting forth new growth.

    Basically if you take everything it is a dead plant. Period. You MUST leave some buds there - preferably the smallest buds - and there must be enough of them to do photosynthesis adequately.

    Yeah, you lose some of your harvest, but the idea is to salvage the plant, not whack every flower for your harvest.

    Light: 24/0 is your best bet, and use a CFL bulb with a reflector about 3 inches from the plant (going with 100 watt equivalent bulbs).

    Nutes: Start with a mix of half and half - half veggie and half flower nutes, and feed 1/4 strength for a few days to a week, then up it to 1/2 strength. Now here I'm talking about half or a quarter of what you regularly feed, not half or a quarter of the amount they say to use on the label. How much water? I'm a pot lifter. I feed when the pot starts getting light. But keep the water light until you do have new growth. Wet it dies. Moist is all you want, and barely moist at that.

    Transplant? No is my advice. Don't do anything else until you have new growth. Once you DO have new growth you can start thinking about re-potting it. I do not re-pot as a rule, and I have one plant I've been revegging and flowering for 2 years straight.

    IF you are going to transplant, wait until there is new growth. Then slice off an inch from all sides, and 1 or 2 inches from the bottom of the dirt ball. Don't worry - she can take it, and she will appreciate the new room for new roots you are creating here. Then repot, filling the bottom and sides in with fresh soil mix.

    Some say after the 2nd harvest the plant starts losing potency. I don't buy that.

    You won't have 100% success. Sometimes they start putting out new shoots and then they just die. But with any luck and if you pay attention, don't over/under water, keep the light ON until you see new green, then go 18/6, you CAN salvage the majority of your plants - if you want to save them.

    And here's the kicker. 2 weeks to recover, 2 more weeks in 24/0 to regrow some stems and flesh out the greenery, then slam her into your flowering chamber. You'll save more than a month from your regular start-to-finsh schedule.

  11. #11
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    Re: How do I regenerate/ rejuvenate/ reveg a plant after harvest?

    Well fooey. Addendum or post scriptum time.

    After the first feeding of mixed nutes switch to pure veggie nutes. Why? Reducing the shock to the plant is KEY in successfully revegging a plant. You are shocking the everloving CRAP out of it by harvesting! How would YOU feel if someone whacked off your head and your arms? Not too good... And your plant is feeling not too good after you harvest it - even if you leave buds and leaves on it. So keep temps steady, steady light 24/day and basically don't mess with it until you have solid new growth.
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    New Member MILF's Avatar
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    Exclamation Re: How do I regenerate/ rejuvenate/ reveg a plant after harvest?

    Quote Originally Posted by QUEENBUD00 View Post
    So unless we have an indoors growroom,theres noway i can reguvenate a plant since we cannot control the light.
    im not sure that is correct.....i say a grow journal by woodsman and he successfully rejuvenated a plant outdoors. i dont know how the end result turned out (bud quality) but he proved its possible to reveg outdoors.

  13. #13
    420 Member WillyBudz's Avatar
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    Re: How do I regenerate/ rejuvenate/ reveg a plant after harvest?

    In my DWC grows I harvest as normal except for leaving at least 3 lower branches with all leaves and popcorn buds on it. I put it under 240w of flouros 24hours on.Used to use a 250w MH but with so few leaves they seemed to stress a little more so I went to 240w of T8's. I prep a bucket with the same nute setup as I do new veg plants.As soon as new growth starts I up to to normal veg nutes. I let them veg until they are 20-24" again and looking strong. I also cut off the remaining budsites about 3 weeks into reveg, they tend to get nasty and I do not like to take chances with mold.

    My Jack Herer and pre 98 Bubba Kush both do as well the second time around as they do the first, a few plants do even better.

    I use GH. The few strains I grow all use a slightly different version of below but it is my base nute schedule.

    For flower in a 5 gallon bucket with 4 gallons of water I use
    5 ml gold zone
    30 ml micro
    70 ml bloom
    20 ml kool bloom
    1 ml gravity during last 4weeks

    New veg and reveg bucket gets
    5 ml gold zone
    20 ml micro
    20 ml grow
    20 ml bloom

    veg buckets
    5 ml gold zone
    30 ml micro
    60 ml bloom

    all at 5.8ph

    BTW, a well made greenhouse smokes both indoors and pure outdoors. You get the best of the outdoors with the Sun and the best of indoors with grow area control. My neighbor makes me jealous, he has a 30 x 12 green house with the north 10x12 of it setup as pure indoor. The end of November - early March he puts up panels to totally enclose ( doesn't want 6k of light going out for all to see) and go full indoors in winter. It kicks ass.

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    Re: How do I regenerate/ rejuvenate/ reveg a plant after harvest?

    Hey bro, I'm in Australia as well.. just harvested a couple outdoor plants and they turned out real nice.. jst seeds from nice outdoor smoke that looked good - big black seeds with the tiger stripe patterns. Anyway I kept em small and bonsai-like on purpose and have tried the "staggered harvest" method to experiment with the different highs etc. I was wondering what your advice on regenerating them would be since we're in the same country!
    I have no indoor option and frankly am glad ..! I saw on youtube a guy just kept watering the left over "sticks" and eventually they came back.. I was going to give them veg-designed nutes like FF grow big or something - is that part of the trick to get them back?

    Cheers man!
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    Re: How do I regenerate/ rejuvenate/ reveg a plant after harvest?

    If you want your plant to regenerate quickly, you have to leave all of the healthiest fan leaves situated in the middle area of your plant. Remove the buds carefully. Pull out each end flower of the lowest leaves and leave the rest of the little flower. Doing these will bring your harvested cannabis plant back to its vegetative state.