If runoff is a problem in your landscape, lawns established with turfgrass sod are up to 15 times more effective in controlling runoff than seed-established lawns, even after three years. View more information about turf and grass.

Grass Height

Lawn grasses do best if mowed at the correct height:

  • Bermuda Grass 1/2 inch to 1 inch
  • Creeping Red Fescue 2 inch to 3 inch
  • Kentucky Bluegrass 1 1/2 inch to 2 1/2 inch
  • Perennial Rye Grass 1 1/2 inch to 2 1/2 inch
  • Tall Fescue 1 1/2 inch to 3 inch
  • Zoysia Grass 3/4 inch to 1 inch

Turfgrass Practices to Minimize Pollution of Groundwater

  • Apply fertilizers only when indicated necessary by soil test or plant tissue analysis
  • Apply nutrients at time of year best suited to the plant or grass.
  • Apply water-soluble nitrogen in split applications at reduced rates
  • Calibrate equipment frequently and apply pesticides safely
  • Never apply more than 1 pound of soluble nitrogen per 1,000 square feet
  • Practice Integrated Pest Management (IPM) by spot treating, using curative programs and establishing damage thresholds
  • Return clippings when mowing and mow with the proper frequency
  • Select grass varieties that are darker green and require less nitrogen and water
  • Use conservation irrigation practices - Water to only slightly below the rooting depth
  • Use safe delivery systems
  • Use slow-release nitrogen on sandy soils