A hand held trencher assembly for digging a trench with existing weed trimmers includes a weed trimmer that is manipulated by a user. The weed trimmer has a motor, a pole and a drive that is positioned within the pole. The drive is rotatably coupled to the motor such that the motor rotates the drive when the motor is turned on. A trenching unit is removably coupled to the pole such that the trenching unit lies on the ground when the weed trimmer is employed. The trenching unit is releasably coupled to the drive for powering the trenching unit thereby facilitating the trenching unit to dig a trench in the ground.
