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How to Grow Thick Grass From Seed

Growing thick grass from seed starts off with proper soil preparation. Grass cannot properly spread when it must compete with weeds for the soil's nutrients and moisture. Fertile soil contributes ample nutrients, such as phosphorous from grass' root systems, to develop and top growth. Using the correct fertilizer that is low in nitrogen prevents stressing grass' root systems. Weak grass roots prevent spreading and raise the risk of fungal disease or future weed growth.

Things You'll Need

  • Herbicide
  • Tiller
  • Fertilizer
  • Drop spreader
  • Garden hose
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Instructions

    • 1

      Spray an herbicide that contains glyphosate on the lawn area to kill off grass and weeds. Reapply the spray in 10 days. By using glyphosate, you prevent contributing toxic soil residue that harms grass seed.

    • 2

      Till the soil to break up clumps. Pour half of the correct amount of starter fertilizer into a fertilizer drop spreader. Use a starter fertilizer that has an NPK amount such as 10-20-10 at a distribution rate of 10 lbs. per 1,000 square feet.

    • 3

      Push the drop spreader vertically over the soil. Add the rest of the fertilizer into the drop spreader and push horizontally over the yard to achieve an even coverage. Work the fertilizer into the first 2 to 3 inches of top soil with a spreader.

    • 4

      Water the area to moisten the soil. Distribute the recommended rate for your grass seed. For example, Bermuda grass seed is distributed at a rate of 1 lb. per 1,000 square feet. Using more than the recommended rate of grass seed encourages competition between the new seedlings, which prolongs establishment times and results in thin grass.

    • 5

      Keep seedlings moist by watering two to three times a day. Apply water when the surface of the planting area has dried out.