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Lawn Food: 16-4-8 Complete Balanced NPK (2.5 Gallon)

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Get the best lawn on the block this lawn season!

16-4-8 Lawn Food contains the essential NPK macronutrients. This Liquid Lawn Fertilizer Contains Nitrogen, Phosphorus, and Potassium. Designed to encourage turf greening & growth while providing nutrients for root vigor.  

16-4-8 is made from high-quality feed-grade ingredients. Our decades of research have resulted in formulas that are expertly manufactured with our proprietary manufacturing method, unlike any other product on the market. 

Nitrogen 16% is the mineral element used in the greatest quantity by turf. Nitrogen is a component of many of the biochemical constituents of plants, including chlorophyll, amino acids, proteins, and enzymes. The addition of Nitrogen encourages vigorous growth for the development of a dense attractive lawn.

Phosphorus 4% The proper level of phosphorus in your grass is essential for root and early plant development. Its primary role is in the storage and transfer of energy. Without sufficient P, normal growth and development cannot occur. Phosphorus effects on turf are usually more subtle and, while not as readily visible, are still very important.

Potassium 8% is involved in carbohydrate formation, photosynthesis, enzyme activation, and the formation of proteins. Potassium plays a role in photosynthesis, and carbohydrate production is reduced when K is deficient. Potassium can enhance the plant’s endurance to stress if a deficiency is present.

Seaweed & Fish Emulsion organic matter for a more effective Lawn Food and optimum nutrient uptake.

Who Should Use This Product? 16-4-8 Lawn Food is best to be used...

  • To maintain and feed your lawn
  • If you want to enhance the green of your lawn
  • If you are trying to boost vertical and lateral growth
  • If your lawn is deficient in Nitrogen or Potassium

Whether you are looking to maintain your current lawn, correct nutrient deficiencies, or you are starting your lawn completely from scratch, our customer care team and products have you covered! Contact our team for a custom lawn plan tailored to your lawn’s needs!

  • Nitrogen Encourages Greening & Vertical/Lateral Growth for a Thicker, Greener Lawn.
  • Phosphorus Provides Nutrients for Resilient Turf & Root Development.
  • Potassium¬†For Plant Hardiness & to Support Essential Plant Function.
  • Corrects Nitrogen, Phosphorus, & Potassium Deficiencies.


  • Covers 32,000 Square Feet
  • Can be Used¬†for All Grass Types.
  • Unique, Proprietary Formula.¬†
  • High-Quality Feed Grade Ingredients.
  • Proudly Made in the USA.

For best results, water the lawn for 20 minutes within 24 hours of application. Water is essential for maintaining your lawn, and your lawn should receive 1-2 inches of water per week. Fertilizer will not treat a lawn that is suffering from disease, pests, weed infestations, or drought, and these conditions should be treated separately.

This fertilizer contains Phosphorus and may not be used for lawn maintenance on turf in Maryland, Michigan, New Jersey, New York, and Virginia except when 1) Providing nutrients to specific soils and target vegetation as determined to be necessary in accordance with a soil test that was conducted by a laboratory* performed no more than 3 years before the application. 2) Establishing vegetation for the first time, such as after land disturbance, provided the application is conducted in accordance with the recommended application rates established by the state. 3) Re-establishing or repairing the turf area. *In Maryland, the soil testing laboratory must be identified under Section 8-803.7 of the Agriculture Article, Annotated Code of Maryland.

Notice: We are temporarily unable to fulfill our products in the following states:

  • Alaska
  • Hawaii
  • Puerto Rico
    Advanced 16-4-8 NPK Lawn Food (2.5 Gallon) by Simple Lawn Solutions Benefits of 16-4-8 NPK, Nitrogen encourages greening and growth, phosphorus essential for root development, potassium for turf hardiness, blended with seaweed and fish, treats nitrogen, phosphorus and potassium deficiencies. 16-4-8 Lawn Food 2.5 gallons covers up to 32,000 square feet

    Why Simple Lawn Solutions

    Made in the USA

    All of our products are manufactured in the United States.

    Top-notch Service

    We offer lawn plans and product recommendations upon request.

    Highly Rated

    Our products are loved by thousands of customers and their lawns.

    Satisfaction Guaranteed

    We are so confident in our products, that we offer a 100% satisfaction guarantee.


    The journey to my beautiful lawn was not an easy one. At first, I had no idea what I was doing and I was getting mediocre results. I found websites like Simple Lawn Solutions to help me on my journey and you can see the results in the photo. Hope you enjoy.

    John F.

    Cool Season Grass. The lawn was previously not loved. Just moved in a few months ago and trying to turn the lawn around into something beautiful. Simple Lawn Solutions has been a part of that process.

    Joseph B.

    The lawn was mostly weeds. We took a soil test, killed the weeds, spike aerated, fixed the soil, and seeded. The lawn was good but SLS put it over the top.

    Richard K.

    Tall fescue with some mix of Kentucky Blue and Perennial Rye. This picture was taken about a week after using Simple Lawn Solutions Energizer!

    Randy B.