A grooming device for use on a walk behind mower which has an operator's handle. The lawn grooming device includes an adjustable tow bar mounted on an operators handle of the walk behind lawn mower; a hitch member mounted on the adjustable tow bar; and a weighted earth engaging roller assembly releasably coupled to the hitch member, and oriented in trailing relation relative to the walk behind lawn mower, and wherein the weighted roller assembly is pivotally moveable in both a horizontal and vertical plane relative to the tow bar.