Abstract: Several embodiments of snow and leaf throwing blades designed to replace a conventional rotary lawn mower blade are disclosed. In one embodiment, a downwardly extending vertical bar member is attached to a rotary lawn mower blade and operates to discharge leaves or snow from the lawn mower. In a second embodiment, the downwardly extending vertical blade is curvilinearly shaped to more efficiently discharge debris from the mower. In a third embodiment, the bar is particularly designed to mulch leaves and grass before discharge, and includes a plurality of downwardly extending tines or rods to effect the combined mulching and discharge operation.