mulching /mʌlt͡ʃɪŋ/adjective 2noun 1forms 1 adjective2 •Used for applying a mulch.This mulching mower can easily be converted to a bagging mower. •Used as a mulch.Compost is generally the best mulching material for the home garden. noun1 •The act of preparing/applying a mulch.Proper mulching in summer months keeps the soil cooler. formsmulchings