Maintaining a sharp lawnmower blade is more important than you think. A clean cut will help your lawn look its best.
Key points for proper lawn mowing:
Sharpen you rotary mower blade at least once a year, more often if possible. Try not to dull the blade by ‘scalping’ any high soil areas.
Use a blade balancer to maintain blade balance while sharpening a blade (Photo of a basic blade balancer is shown below).
Mow grass at the highest setting possible without it laying over, since taller grass = deeper roots.
Mow your lawn in the cool of the day, once dew has evaporated, or when the grass is dry.
Mow often enough to be able to mulch clippings back into the lawn without creating clumps, since this adds nutrients and organic matter to the soil. Try not to remove more than 1/3 of grass height when mowing.
Lower your mowing height for the last few cuts before winter dormancy, to help prevent snow mold disease. More on the LAWNMOWING page.