Coffee Grounds in the Garden
...ctions and feed earthworms. Authored by Dr. Linda Chalker-Scott, Extension Urban Horticulturist and Associate Professor, this peer-reviewed pamphlet also provides a set of suggestions for using coffee grounds in the garden: Coffee grounds should be composted before used as a soil amendment but can be used fresh as a mulch. Fresh grounds are phytotoxic, so keep them away from direct contact with roots. Coffee grounds will not necessarily make your...