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Thread: Just entered 4th week of flowering, noticed yellow leaves

  1. #1

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    Default Just entered 4th week of flowering, noticed yellow leaves

    Hi posted a couple times before.

    First time grower here, really enjoying my new hobby.

    Small tent 2 plant set-up, soil medium (Canna Terra), Grapefruit strain, using BioBizz nutrients (using Bio-grow, Bio-Bloom, Top-Max but diluted beyond recommendation as have dealt with slight nutrient burn.

    So my issue is just finished 3 week of flowering yesterday and a few hours after watering today I have noticed a bunch of yellowing leaves mostly on one of my plants.
    Pics attached.

    (When looking at the pics its the plant on the left, which has always been slightly smaller than the other despite identical treatment)

    Checking the app I'm using to track their growth they didn't display any yellowing at all last night so I'm pretty concerned by how rapidly its changed.

    I'm guessing that the culprit is overwatering? I'm pretty certain I may have been doing that do much despite trying to actively avoid it and despite a relatively small watering today it seems to be retaining it a lot more.

    Having had slight nutrient burn in the past I doubt that it would be lack of nutes.
    Some of the leaves are pretty exposed to light so I don't think it would be lack of that, though that being said about all of the leaves are on the lowest part of the canopy.

    Any help appreciated!!

    Cheers
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  3. #2

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    Just looking around to see cause of the issue.

    Do you guys think it could be nitrogen deficiency??

    If so how do I fix that??

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  5. #3

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    Click image for larger version. 

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    Leaves are dying now

    Any help pls?

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  7. #4

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    Looks normal to me, just some of your leaves using up there reserve N. I wouldn't be that concern about it. Plant looking fine.

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  9. #5

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    I thought they weren’t supposed to start yellowing till last stages of flowering?

    Thanks so much for the response though, this being first time only having a handful of pics and YouTube vids to go off so any deviation from that I start freaking out haha

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  11. #6

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    I don't like mine to start yellowing too early in flower, they can end up just about having no fan leaves by the time they get to the end. I just keep very very slowly upping the nitrogen until I get them to stop yellowing and then I watch carefully for when I need to back off.



    J

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  13. #7

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    Yeah, it just seems a little early in flower to be yellowing, I bought some blood meal to top of nitrogen levels but not knowing if it’ll arrive in time for this at least I’ll have it for next time.

    I did give a good topping of Canna Terra Professional soil which is supposed to have a good amount of nitrogen, and while doing so I noticed one or two decent roots half exposed from the recent watering so maybe that had something to do with it?

    While the ones that were yellow are browning and dying it doesn’t seem as if more are turning for now.

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