How to Help New Grass Grow


Establishing new grass can be a challenging task. From the time you plant the seeds until the grass is mature, much care is needed to ensure its survival. New seeds can be easily washed away in a heavy rainstorm, young seedlings can succumb to drought or disease, and even almost-mature grass can fail to thrive.

Step 1

Water the grass to keep the seedbed moist at all times. New grass should be watered three or four times per week for about 20 to 30 minutes per watering. Water in the morning to lessen evaporation effects of mid-day sun. New grass does not have a developed root system. The roots are shallow, and once they dry out, the grass will die.

Step 2

Spread a starter fertilizer on your new grass. Starter fertilizer contains high levels of nitrogen and phosphorous. Nitrogen promotes vigorous shoot growth, while phosphorous promotes root growth and development. A starter fertilizer will have a ratio such as 10-20-10 or 5-10-5 (nitrogen, phosphorous, potassium). The bag will tell you how much fertilizer to spread over your lawn.

Step 3

Mow your grass every five to seven days. Don't remove more than one-third of the grass blade at each mowing. When you remove too much at once, the grass becomes weakened and subject to possible scorching.

Step 4

Prevent dogs from urinating on your lawn. Urine damage is a very common problem on home lawns. Urine contains a high level of nitrogen that can easily kill the grass.

Things You'll Need

  • Lawn sprinklers
  • Garden hose
  • Starter fertilizer
  • Broadcast spreader
  • Lawn mower


  • Penn State University: Starter Fertilizer
  • The Garden Counselor: Watering New Grass Seed
  • Turfland: Caring for Your New Lawn

Who Can Help

  • University of California: Starter Fertilizer
Keywords: help new grass grow, water the grass, developing grass roots, urine damage

About this Author

Robin Gonyo has been writing for several years now. She has a deep love for gardening and has spent a vast amount of time researching that subject. Previously she has written for private clients before joining Demand Studios. She hopes to share her knowledge with others through her writing.