A landscaping material cleaning technique involves the application of a vacuum cleaner attachment. This attachment defines a conduit extending from a suction inlet to a suction outlet. The suction outlet is sized and shaped to connect to a vacuum cleaner in fluid communication therewith. The attachment further includes a number of teeth extending away from the inlet and optionally a grating that extends across the conduit to define a number of apertures circumscribed by a conduit margin. These apertures are sized and shaped to selectively separate fine particulate debris from a coarser landscaping medium when suction is applied through the conduit. The teeth project out of one end of the conduit to serve as a rake for grooming the coarser medium as the particulate debris is separated from it by suction applied through the conduit with a vacuum cleaner.