Understanding the basic causes of why grass fails to thrive and how to address these issues forms the key to effectively revitalizing dead grass. The first step is to identify what the causes of dying or dead grass may be. Causes can include over-fertilization that has burned or killed grasses, inadequate access to sunlight or hydration, under-fertilization, pests, or fungal or bacterial grass disease. It is important to address these issues before simply reseeding a portion of or the entire lawn to avoid having the same issue reappear. Follow these simple tips from experts to revitalize dead grass patches in your lawn.
First, turn the soil. This is accomplished by taking a spade or shovel to the patches of dying or dead grass and turning the soil upside down so that potentially contaminated soil now lies farther beneath the topsoil. Next, flood the turned soil with water, watering away contaminants over a wider range of deeper soil where they cannot threaten new grass root systems.
The next step is to aerate your lawn using an aerator type that removes soil plugs, which improves air circulation. Next, use a power rake to rake the soil patch to be reseeded to break up soil so new roots can become easily established. Next, reseed the area that needs revitalization and water thoroughly. For large spots where sod is needed, cut the sod patch to the shape in need of reseeding, dig out the old growth, and lay down the new sod.