Abstract: A multi-purpose weeder attachable to a hand-held rotary power implement is designed to weed, aerate and till soil. A vertical shaft is removably attached to the implement to permit erect operation of the weeder. A pair of substantially spiral-shaped blades are rigidly connected at an acute angle with the lower end of shaft to cause discharge of weeds upwardly and outwardly from soil when the shaft is rotated. The blades are equally spaced from the shaft as they diverge upwardly. A top end of an auger is connected to the lower end of the shaft to penetrate weed and soil at its free end. An annular member with a cross horizontal element connects the upper ends of the blades to the shaft.