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How to Make Your Own Grass Fertilizer

By Sarah Terry ; Updated September 21, 2017

Giving your grass a healthy boost when it’s ailing can be expensive, especially when you have a larger lawn. Every now and then, all grass needs some fertilizer to stay green and healthy. Luckily, you don’t have to spend a lot of money on commercial grass fertilizers or lawn services to fertilize your lawn. There are several simple ways you can make your own grass fertilizer using common household ingredients.

Ammonia & Beer Fertilizer

Place one part ammonia, one part Epsom salts and one part beer into a large mixing bowl or wide-mouthed glass jar. Mix the beer, ammonia and Epsom salts together.

Pour the mixture into a plastic lawn sprayer container. Screw the top nozzle onto the sprayer container, and then attach your garden hose to the sprayer nozzle.

Spray your lawn with the mixture and water until the soil is moistened thoroughly. This can serve as a once-per-year application, or you can reapply the mixture and water in about 4 weeks if necessary.

Fertilize Grass with Compost

Create a compost pile in an area of your yard, preferably far from your house so you don’t smell it. Build up a compost pile using all of your organic kitchen waste, such as vegetable and fruit scraps, teabags, and even paper towels and napkins. You can also add grass clippings and leaves.

Turn the compost materials using a pitchfork once or twice per week. When the compost decomposes and turns into a soil-like consistency, it’s ready for use as a fertilizer.

Spread the compost in a fine layer on your lawn. Use a broom or plastic garden rake to rake the compost so that it sits on the soil and not the grass blades. Water the grass to help the compost integrate into the soil.

Eggshell & Coffee Grounds Fertilizer

Save and dry your empty eggshells and used coffee grounds. Place the eggshells into a blender and pulverize them until they turn into a powder-like consistency.

Mix the eggshell powder and spent coffee grounds together in a large bowl. Simply toss them together lightly using a large spoon or your hands.

Sprinkle the eggshell and coffee grounds mixture lightly over your lawn. The eggshells provide lime and the coffee grounds provide nitrogen, phosphoric acid and a host of other minerals and elements.


Things You Will Need

  • Ammonia
  • Epsom salts
  • Beer
  • Mixing bowl or glass jar
  • Plastic lawn sprayer container with nozzle attachment
  • Garden hose
  • Compost materials
  • Pitchfork
  • Broom or plastic garden rake
  • Eggshells
  • Used coffee grounds
  • Blender
  • Large bowl and spoon


  • Two cups of water to 1 cup each of ammonia, beer and Epsom salts will cover about 500 square feet of lawn. Adjust your amounts as needed to cover the desired areas of grass.


  • Avoid applying wet coffee grounds to your lawn, because they tend to clump together and become moldy. Instead, air dry the coffee grounds or dry them in a low-temperature oven before fertilizing your grass with them.

About the Author


Sarah Terry brings over 10 years of experience writing novels, business-to-business newsletters and a plethora of how-to articles. Terry has written articles and publications for a wide range of markets and subject matters, including Medicine & Health, Eli Financial, Dartnell Publications and Eli Journals.