Abstract: Lawn clippings are pelletized and distributed back onto the lawn directly, for example, as part of a mowing operation. For this purpose the lawn clippings are supplied into the top of a chamber wherein compression rollers press the clippings through a stationary apertured plate for extruding the clippings in the form of compressed strands. A rotating distribution disk is arranged below the plate for breaking up the strands into pellets and for throwing or distributing the pellets over the lawn as it is being mowed. The pressure applied to the grass clippings is adjusted to be sufficient for the extrusion, but insufficient for squeezing the natural juices out of the grass clippings. To avoid clogging and positive extrusion at all times during the operation, the compression rollers are preferably driven positively by a double drive system for rotation about a vertical and horizontal axis.