During the summertime, grass can burn for a variety of reasons. A lawn might burn up because it was over-fertilized, or it might burn because it has not been watered thoroughly. If you find that your lawn is burnt, there are several ways to treat the grass in hopes that it will come back green and lush.
If you are just beginning to notice that your grass is looking slightly burned, watering your lawn might be the best cure. When watering, be sure that the grass is being thoroughly soaked. The water should soak into the soil at least 6 inches deep, in order to properly moisturize the roots. This also allows the roots to grow deeper into the soil, which protects the grass in the future from becoming burned easily.
One surprising way to treat a scorched lawn is to add sugar to the grass. The sugar will help enrich the soil and will benefit the organisms and microbes that help keep your grass alive. Spread 1 pound of sugar for every 300 square feet of lawn. If you are adding sugar to your lawn, be sure to avoid using weed killers or fertilizers, because the chemicals will keep the grass from becoming green again.
Plant New Seed
If just a portion of your grass has been burnt, consider planting new seed in that particular area. To begin, cut out the area that is burnt. Then, you should remove about 1 inch of soil from the affected area. Throw some new top soil down, and mix in some grass seed. This area will need to be watered heavily for several weeks, but in time, you will have a new patch of healthy, green grass.
If you find that your entire lawn is burnt to a crisp, and nothing is bringing back that vibrant green color, your only option may be to re-sod. In this case, all the dead and burnt grass must be torn up from the lawn and you must start from scratch. This can be a difficult process, but once you re-sod, be sure to take preventative measures to keep the lawn from burning again.