Fertilizing with coffee grounds

Discussion in 'Growing Marijuana Indoors' started by malinak132, Aug 8, 2017.

  1. Hi, I want to know, if anyone have experiences with coffee grounds. Or tell me another easy/cheap way to add nitrogen to soil. Thanks for help.
  2. Coffee grounds are extremely acidic until composted. I suggest composting with them but don't use them ditlrectly in your pots.

  3. Jerry is right..ph is around 4. Not a lot of NPK either

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