Wash the underside of the mower after each use. A clogged deck won't mulch or discharge well. Cut the grass high . Adjust the mower blade so that only the top one-third of the grass blade is cut. Leave at least 2-3 inches on the grass blades after cutting.
Tall grass stems stimulate deep root growth, since grass roots grow as deep as the blade grows high.
During times of rapid growth, you may need to mow every 5-6 days. Cut when the grass is dry in order to avoid a wet, stick mess on your lawn and inside the mower deck. If you mow infrequently or if your grass grows vigorously, you should collect the clippings. If the clippings are smothering the grass and have not decomposed before the next mowing. As the season changes and grass growth becomes less aggressive, you can switch methods and begin leaving the clippings on the lawn.