flooded lawn

Repairing lawns from flooding

With more rain to come over the weekend, we would recommend that the following repairs may be necessary for your lawn after any flooding:

Option one – Lawns that have been under floodwater and associated silt for less than four days will recover quickly. Once the silt has dried the following treatment plan will need to be considered.

  • Remove all debris that may have been left on the lawn by the flooding
  • The lawn surface will need to be raked to break up the silt crust
  • Aeration will be necessary for helping to dry the lawn profile
  • After aeration, the lawn will benefit from a light top dressing which should be raked into the lawn surface
  • Application of fertiliser will encourage the recovery of the grasses
  • Overseeding is likely but should be completed in the spring to allow for good germination.

Option Two – Lawns that have been under floodwater for more than four days are likely to require major renovations, especially as they may be covered in a thicker layer of silt which will result in much if not all of the grass is dead.

  • Remove all debris from the lawn
  • Remove as much of the silt layer as possible
  • All grass vegetation will need to be removed through scarification or by the use of a turf cutter
  • Where the lawn levels have been disturbed there will be the need for topsoil to be applied
  • Cultivate the lawn surface, mixing the topsoil with the lawn profile, diluting all remaining silts
  • Prepare a level surface through raking in various directions
  • If you wish the lawn to be returned to perfect condition before the winter then turf will be the only option at this time of the year
  • If the preferred option is for overseeding, this will need to wait until the spring to allow for good germination.

If you want any more information in regards to your lawn repairs from flooding then get in contact with your local TruGreen business by finding them here.