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All-Purpose NPK Plant Food for Houseplants (32 Ounce)

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4-6-8 All Purpose Plant Food contains the essential macronutrients to help keep your plants looking and feeling their best! This plant food is designed to enhance your plant's greenness & growth while providing just enough energy for root support, vigor, and strength. If you want a balanced plant fertilizer to maintain your plants, this all-purpose food is perfect for you! 

Who Should Use This Product? Simple Grow Solutions' 4-6-8 All-Purpose Plant Food is best to be used...

  • As an indoor plant fertilizer to maintain and feed your plants
  • As a garden fertilizer, or vegetable fertilizer
  • If you want to enhance the green of your plants
  • If you are trying to boost vertical and lateral growth
  • If your soil is deficient in Nitrogen, Phosphorus, or Potassium

This liquid plant food for indoor plants and gardens 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 encourages greening & vertical/lateral growth
  • Phosphorus provides nutrients for resilient plant & root development
  • Potassium for plant hardiness & to support essential plant functions
  • Corrects Nitrogen, Phosphorus, & Potassium deficiencies

Nitrogen 4% Nitrogen is the mineral element used in the greatest quantity by plants. Nitrogen is a component of many of the biochemical constituents of plants, including chlorophyll, amino acids, proteins, and enzymes. 

Phosphorus 6% The proper phosphorus level 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 plants are usually more subtle and, while not as readily visible, are still very important.

Potassium 8% Potassium 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.  A plant deficient in Potassium can be more susceptible to stress from drought and temperature. 

Humic Acid helps promote the release of locked-up nutrients in the soil to increase fertilizer transfer. 

Seaweed as added organic matter to the soil.

  • Great all-purpose fertilizer for most plant types
  • Liquid plant food can be used for houseplants, gardens, and Lawns.
  • Unique, proprietary plant and garden fertilizer
  • High-quality feed-grade ingredients
  • Proudly made in the USA

For best results, follow the directions on the label, and apply All-Purpose Plant Food with water. 

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

  • Alaska
  • Hawaii
  • Puerto Rico
All-Purpose NPK Plant Food for Houseplants (32 Ounce) Pothos plant with All-Purpose Plant Food NPK (32 ounces) Assortment of houseplants and a woman holding with All-Purpose Plant Food NPK (32 ounces) Assortment of houseplants with All-Purpose Plant Food NPK (32 ounces) Woman applying All-Purpose Plant Food (32 Ounces) from a copper watering can to a snake plant All-Purpose Plant Food by Simple Grow Solutions

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.