Quote:
Originally Posted by Lagniappe
I've read that used coffee grounds had a Ph of 6.8 and would be consumed very quickly by the crawlers. I'm using them in my vermicomposting, almost exclusively , as a food source. The worms love em', and they are particularly sensitive to acidic conditions.
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Washed, dried coffee grounds have an N-P-K of about 2 - 0.3 - 0.3. They are an excellent way to produce high-nitrogen vermicompost. However, you are missing out on trace elements that would be provided by vegetable greens.
Coffee grounds from a coffee house (e.g., Starbucks) have a more neutral pH because their pressurized coffee makers are more efficient than a home drip system. Fresh coffee grounds
straight from the coffee filter after making coffee in a drip coffee maker are more acidic.
Worms used in vermicomposting (e.g., Red Wrigglers) are sensitive to pH below 6.3 or so.