How to Use Coffee Grounds for Plants: Soil, Compost, and Fertilizer
Coffee grounds are one of the most accessible soil amendments a gardener can get, and most households produce them daily. Used grounds contain about 2 percent nitrogen by weight, plus trace amounts of phosphorus, potassium, calcium, magnesium, copper, iron, and zinc, and the organic matter improves soil structure as it breaks down. They nudge soil […]
