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Thread: Flower stopping, light leaves, brown tips. What's wrong?

  1. #1

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    Default Flower stopping, light leaves, brown tips. What's wrong?

    The flowering has stopped. For some time now I have had a problem with very bright leaves at the bottom of the plant, but it is progressing upwards. At the tops there are leaves with brown tips. I thought it was a sulphur deficit, they got fertiliser, but there is no improvement. The leaf tips at the tops wrap up as shown in the pictures.

    1st plant - 63 day
    2nd plant - 62 day

    *Potted Soil: BioBizz Light-Mix
    *Fertilizer: BioBizz Bio-Grow, BioBizz Bio-Bloom, BioBizz Top-Max
    *Flowerpots: 9L (1st) and 7L (2nd)
    *Lighting: COB LED Citizen CLU048, color 3500k, 100W (currently set to 60-70W)
    *Temperature: 22-23 degrees.
    *Humidity: 40-60%
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  3. #2

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    Quote Originally Posted by BearSmalls View Post
    The flowering has stopped. For some time now I have had a problem with very bright leaves at the bottom of the plant, but it is progressing upwards. At the tops there are leaves with brown tips. I thought it was a sulphur deficit, they got fertiliser, but there is no improvement. The leaf tips at the tops wrap up as shown in the pictures.

    1st plant - 63 day
    2nd plant - 62 day

    *Potted Soil: BioBizz Light-Mix
    *Fertilizer: BioBizz Bio-Grow, BioBizz Bio-Bloom, BioBizz Top-Max
    *Flowerpots: 9L (1st) and 7L (2nd)
    *Lighting: COB LED Citizen CLU048, color 3500k, 100W (currently set to 60-70W)
    *Temperature: 22-23 degrees.
    *Humidity: 40-60%
    Enviroment seems to be in check, plants look like they're wilting and clawing at the tips. Usually this is down to under or over watering but hard to say.

    How often you feeding?

    At this stage, I go for a feed, feed, flush routine, and allowing the soil to go from wet to dry cycles, usually water every 3 or 4 days at this stage aswell

    Sent from my SM-N950F using Tapatalk

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    I water the plants every 2.5 days or so. Every 3-4 days I watered the plants during the growing phase, but I noticed that now they need it more often. I pour fertilizer and clean water for a change.

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    Do you give them any cal/mag?

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    Honestly, no. The water I pour has the specified amount of magnesium and calcium, but it may not be enough. This is my first grow. You think that might be a problem? I've already checked symptoms several times, and I'm already lost in it all.

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    imho I think they could use some. I also wondering about over/under watering. Do you lift your pots to feel how heavy they are before watering?
    I also wonder if you have enough light. I don't know squat about led so hopefully someone will let ya know about that.

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  13. #7

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    Quote Originally Posted by Blue61 View Post
    imho I think they could use some. I also wondering about over/under watering. Do you lift your pots to feel how heavy they are before watering?
    I also wonder if you have enough light. I don't know squat about led so hopefully someone will let ya know about that.
    Yeah, I use pot weighing before watering from the very beginning.

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  15. #8

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    Is that enough light at 70 Watts? I'm hps so I don't really have a clue what I'm talking about
    Atb chap

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