Mow frequently (every 4 to 7 days). Cutting your lawn often is the best way to encourage it to grow lush, green, and full. Spring time requires more frequent lawn cutting because a large percentage of total growth occurs in the spring time.
Don’t remove any more than one third of the grass leaf at any one cutting, otherwise stress will result in browning. If circumstances arise that a lawn gets too tall and you just have to lop off a bunch to get caught up, bite the bullet and break it down into several mowings to get caught up with 3 or so days between cuttings.
Don’t cut your grass too short, particularly for cool season grasses. Cut at a height of 2.5 to 3 inches. (6 to 7 cm). Higher heights usually provide for a deeper root system, looks better, and is less likely to have weeds invading, particularly crabgrass.
Mulch clippings back into the lawn. Exception – Bag clippings during disease recovery and the final cut of the season.
Try to avoid mowing when the grass is wet. Mow when the lawn is dry. It’s difficult to get a clean cut when the lawn is wet.
Mow your lawn in a different direction with each mowing, especially with lawns of shorter grass types. Altering the direction ensures a more even cut lawn since grass blades will grow more erect and less likely to develop into a set pattern.
Keep your mower’s blade sharp, which means having it sharpened several times during the mowing season. Keep several blades around so you’ll always have a sharp one on hand.
Don’t forget to change your mower’s oil at least once during the mowing season.
If you didn’t drain your gas tank in the fall, or use a fuel stabilizer, don’t use that old gas, it can cause a number of problems. Better to use fresh gasoline to begin the new mowing season.