How soon can I mow after aerating?

The timing of your first mow after aeration has a significant impact on the recovery of your lawn. If possible, delay mowing for two full weeks before mowing to allow enough time for the grass roots to ingratiate themselves in the new air channels. Mowing too early destroys delicate new growth and tears into the soil structure. I mowed too early once and have yellow streaks where it was pulled out.

The two-week wait keeps roots anchored. Grass puts energy downwards during recovery, not upwards. Cutting too soon diverts energy to blade repair. Waiting gives you stronger roots at a deeper level, which better handle summer stress. Daily measure with a ruler to see growth.

Mower blade sharpness becomes very important when you undertake your first cut. Dull blades will tear the grass, leaving ragged wounds that open the grass to disease. Government recommendations suggest two sharpenings during the recovery season. I often replace my blades annually, which provides for clean-cut blades and better wound healing. Disinfect the blades after use to stifle any fungi from potentially travelling.

Sometimes, unique conditions may require mowing to be started sooner. Grass that grows to five inches in recovery should be cut at the highest setting. Mow in the evening during cooler temperatures to reduce stress on the grass. Avoid sharp turns to prevent tearing out plugs. Collect the clippings rather than mulching the cut during the first cut.

Return to the normal mowing schedule after two weeks. Always adhere to the one-third height rule. If cool-season grasses are cut at three inches, and warm-season grasses are cut at two inches. If you follow this guide, your lawn will show thicker growth in weeks. Timing makes recovery = visible; timing makes visible.

Read the full article: How to Aerate Lawn: The Complete Guide