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Originally Posted by primetboosters
Hey people... My grandma has always swore that Banana peels are super good for her garden. Has anyone ever thrown in some peels while growing Mary-jane ? I read that they are FULL of nutrients.
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The NPK value for banana skins is 0.6-0.4-11.5. ... The NPK of fresh banana peels is 1/5 of that, making an NPK of 0.1-0.1-2.3. The difference is water in the peel. So how much peels do you need? .... One or 2 peels for a pot is good. BUT, if you needs 100 lbs of fresh peels to get 2lbs of potassium I think you would be better off buying fertilizer or the potassium as needed.
Grandmas are not always right or helpful. They are for loving as Grandmas.