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Homemade Lawn Fertilizer

 Recipe  •  Published on: 13 May 2014

Fertilizer can be made using ingredients you probably already have inside your home. While there are many recipes available, most have the same ingredients in common because they deliver vital nutrients and protection to your lawn. These ingredients include beer, soda, mouthwash, ammonia and dish soap. Beer contributes nitrates, while mouthwash acts as a natural pesticide. Ammonia contributes nitrogen to the grass, while dish soap causes the solution to spread evenly. While the recipes vary, one calls for combining one bottle of beer with one can of soda, 1/2 cup of mouthwash, 1/2 cup of ammonia and 1/2 cup of dish soap that is not antibacterial. This solution gives your lawn a boost of nitrogen, leading to greener grass. For new lawns, add 1/2 cup of concentrated sea minerals to boost potassium levels.


After you make your own lawn fertilizer, you need to apply it. Using a hose applicator is one of the simplest ways to do this. These applicators screw onto the end of standard garden hoses and use suction to pull the fertilizer into the stream of water where it is diluted. Fill an applicator with the solution and slowly wave the stream back and forth across the lawn until the surface is coated evenly. All fertilizer should be applied evenly and with the use of water to protect the grass from chemical burning. In the majority of the country, the best time to apply lawn fertilizer is in just ahead of the rainy season. In the northern third of the country, where temperatures are colder, the best time to apply lawn fertilizer is in the fall.

Alternative Delivery

In addition to applying liquid fertilizer manually, the homemade solution may also be applied using a sprinkler system. Some sprinklers contain a tank in which liquid fertilizer can be stored and applied automatically. These systems automatically draw from the tank and apply the fertilizer every time the sprinklers run. Fill the tank with your homemade fertilizer and watch your grass grow green and healthy.


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1 comment

  • Justine M. Justine M. What mouthwash do you use? I would think they are not very environmentally friendly?!
    Saturday April 2, 2016 at 16:33