How to Treat Cat Urine Stains in Grass

Pet urine on grass can cause patches of brown, burned-looking sod, as the roots are damaged by the salts, uric acid or nitrogen content of the urine. Studies indicate the amount of urine, rather than the type (a cat's urine is chemically stronger) is what has the most effect on the lawn. Although a dog typically can produce a greater volume of urine, cats using your yard regularly as a litter box can also cause damage that will require some work to repair.

Things You'll Need

  • Water hose
  • Pet urine removal product for lawns
  • Rake
  • Grass seed
  • Compost or potting soil
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Instructions

    • 1

      Spray the urine-soaked grass immediately with pressurized water from a hose to dilute the nitrogen in the urine. Allow to dry.

    • 2

      Apply a product designed to neutralize the chemicals found in pet urine, such as See Spot Run! Lawn Protectant, Lawn Spot Away or Green-UM spray; these can be purchased in pet supply stores, or online. Allow to dry.

    • 3

      Rake the affected area to remove as much of the dead grass as possible.

    • 4

      Cover the dead area with grass seed, applying enough so that seeds are touching, but do not pour on in thick layers. Apply a covering of compost or rich potting soil over the seed.

    • 5

      Water gently with a sprinkler or watering can to saturate the seeds, but avoid washing the compost or dirt away. Continue watering every few days, saturating the soil, until new grass is established.