How long it takes grass to recover from a fire, fertilizer burn, or heat burn depends on the type of grass, the cause of the burn, and your local weather patterns. In general, it takes about three to four weeks for your lawn to start greening up again.
If you want to speed up the recovery process, you can sprinkle some sugar on your grass and then water it abundantly. This will accelerate the growth of new roots and leaves in your lawn.
Sugar is a good source of nutrients that are important for the growth and health of your grass. It also contains microbes that convert nitrites to nitrates and aid the growth of new grass.
Aside from watering your grass abundantly, you can also help it recover from a burn by adding a layer of mulch or compost to the soil. This will keep your grass moist and cool and make it less likely to burn in the future.
Some types of grass may be able to recover from a burn in as little as eight days. However, other types of grass will take a bit longer to recover from a burn.
If your grass was damaged by a burn, you may need to reseed it with new seed. This process is both simple and affordable.
Ideally, you should reseed small patches of your lawn in one to four months if you plant new seeds in spring or winter. Adding a layer of mulch to the soil will also provide your grass with much-needed nutrients and will speed up its recovery.