How to Apply Grass Fertilizer


If you begin the process of fertilizing your grass on a routine basis, you will experience grass that is both healthy and attractive. Fertilizing your grass correctly is the key. Fertilizers are chemicals that can burn your grass if they are used the wrong way. Fertilizing your grass can easily become second nature if you are willing to put in the time

Step 1

Follow the directions on a soil test kit to find out what your soil's potassium, nitrogen, and phosphorus levels are. If you are deficient in any of these nutrients, you can purchase a fertilizer that will add the lost nutrients back into the soil.

Step 2

Calculate the square footage of your lawn if you do not already know it. This is simply the length of the lawn times the width of the lawn. For example, a lawn that is 60 ft. long and 30 ft. wide is 1,800 sq. ft. (60 X 30). According to University of Arkansas Extension it can be helpful to visually break up your lawn into a series of boxes surrounding your house to get the most accurate measurement.

Step 3

Purchase enough fertilizer to cover the square footage of your lawn. Just read the product label to see how many square feet the product covers.

Step 4

Mix the fertilizer with the appropriate amount of water listed on the product label. Most fertilizers come in a concentrated form, and must be mixed with water first. If you are using a granular fertilizer, you won't need to mix anything.

Step 5

Spray or spread the fertilizer starting at the back of your property, and working your way to the front of your property. Apply the fertilizer at an even pace, and at the rate suggested on the product label of the product you chose. For example, a product label may recommend 5 lbs. of the product be used over an area of 1,000 sq. ft.

Step 6

Water the fertilized grass so that the fertilizer seeps into the soil. Then stay off of the grass until the ground is completely dry.

Step 7

Apply your fertilizer several times per year. According to University of Illinois Extension, the best time to fertilize your lawn is early fall. You may also want to fertilize it again in the spring, particularly if you plan to use a fertilizer that includes a weed suppressant for crabgrass.

Tips and Warnings

  • Always dress in long clothing and wear protective gear, such as gloves and goggles. Fertilizer is harmful to humans and pets.

Things You'll Need

  • Soil test kit
  • Calculator
  • Fertilizer
  • Spreader
  • Hose


  • University of Arkansas Extension: Fertilizing Your Lawn
  • University of Illinois Extension: Lawn FAQ- Home Lawn Fertilization
Keywords: fertilizing your grass, lawn care, caring for grass

About this Author

Alicia Bodine has been a professional writer for six years. She has produced thousands of articles for online publications such as Demand Studios, Bright Hub, Associated Content and WiseGeek. Bodine is also the current cooking guru for LifeTips. She has received awards for being a top content producer.