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Thread: My cannabis leaves are curling up and turning brown

  1. #1

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    Default My cannabis leaves are curling up and turning brown

    I am 3 weeks in veg. I'm using promix premium potting mix the temp is 27° and the humidity is around 55 my leaves are curling up and starting to turn brown I am using Mars hydro 48 led lights I had the light a little closer at first then i moved it 18 in away and the leaves were doing the same thing
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  3. #2

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  5. #3

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    Looks like your soil is too hot!

    When you say pro mix, what brand is it?

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  7. #4

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ID:	371287 this is what I'm using

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  9. #5

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    Yes looks hot at first. But new growth seems to be ok. I'd let it go and not add any nutes till they look like they need it

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  11. #6

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    I haven't added any nutes yet but the new growth is slightly curling up and just the very tip is changing color

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  13. #7

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    Yes the medium must have some nutes in it. If I put baby's in ffof they do the same thing till they get big enough to handle it. Tops look better than the lowers so you should be fine

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  15. #8

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    Do you have good watering habits? water fully and let the pot get light before watering again? I am leaning towards overwatering even though top looks dry in these photos.

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  17. #9

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    I water when pot gets to half weight. So once watered lift pot to see how heavy it is then once it gets to feel like half that I give a little more

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  19. #10

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    Ok thanks man I'll let u know how it goes

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