Hey there. I own a cafe' down here in New Zealand and we go thru literally heaps of coffee grounds each day. I've started putting bags of the spent coffee grinds around the citrus patch as i heard that its like a poor mans fertilser. I have noticed it does get mould growth on the top so i sprinkle over with a little compost or dirt to cover. It would be great to use this used coffee for something rather than chucking it in the rubbish.
Any comments anyone???
Millet wrote:
Coffee grounds, could be beneficial to in ground trees. Used coffee grounds are normally reported to have a pH of around 5.5, but Starbucks reports that most of the acidity is removed in the brewing process, leaving used grounds with an average PH of 6.9 (almost neutral) with a carbon-nitrogen ratio of 20-1. Ground coffee supplies about 1.5 percent nitrogen, 2 percent potassium and 3 percent magnesium. However, using grounds in a container might be difficult to incorporate into the soil, and would tend to wash aside with watering. - Millet
