The Difference Between Mulch and Compost
...aves, shredded cuttings and bark, etc., spread on soil or around or over a plant to provide insulation, protect from desiccation, and deter weeds. Also: textile or other artificial material used for the same purpose. I’d argue that compost, properly defined, is fully not partially rotted organic material (or textiles or plastic, though I don’t like plastic mulch). The distinction is important. If you integrate mulch, i.e. partially rotted material...
