Top dressing and over seeding
Topdressing is spread by the shovelful in a manner similar to taking a shot with a hockey stick. A smooth, sweeping motion aimed at trying to spread the material as evenly as possible to a depth of 1/4 inch to 1/2 inch. Traditionally top dressing is a mixture of 60% sand and 40% soil. Topdressing machines are also available and consist of a hopper to hold the material with a motorized belt to move the product through the hopper to a spinning disc which spreads it on the lawn. These machines are just beginning to get popular as more and more people request topdressing with compost as part of their lawn care regimen.
When topdressing, it is beneficial to do it in conjunction with other cultural practices like aerating, de-thatching and over seeding. Topdressing after aerating and over seeding is the ideal trio of lawn care chores that will result in a healthier lawn. The aerating opens up the soil, allowing for better air and water movement and reduced compaction. The aeration holes provide the perfect seed bed for over seeding, allowing newer generations of grass to establish and thrive. Lastly, topdressing helps fill in the holes, covering the seed and allowing for ideal germination conditions with a burst of nutrients as the seedlings establish. It's a win, win, win, situation. The most appropriate cultivar of seed for your lawn will be determined with a site visit and lawn analysis report.