Lawn Fertilizer

Organic lawn fertilizers feed your grass too

A grass plant needs lawn fertilizer. Lawn treatments include nutrients and micronutrients. Until you’ve achieved an optimum lawn nutrient cycling with the soil food web, you’ll have to supplement your soil with fertilizers. On this page we talk about the actual grass fertilizers required for healthy turf.

The best lawn care will require 5 nutrients in lawn fertilizer

These are considered macro nutrients.

Also very important in the health of turfgrass are lawn micronutrients and that discussion is located on this link.


lawn fertilizer


The front of the lawn fertilizer bag would have three numbers. Say 20-10-18 for example. Those same numbers are on bagged organic fertilizers. Those numbers are generally drastically lower.




Those particular lawn treatment numbers in order represent:

  • Nitrogen (N)
  • Phosphorus (P)
  • Potassium (K)

These elements are critical in establishing and maintaining healthy green grass.

The two other important nutrients that we’ll talk about are:

  • Calcium (Ca)
  • Magnesium (Mg)


How can you tell if your grass is lacking lawn fertilizer?

The only true way to answer that question is to have a soil test done. From there you will be able to determine what your soil is lacking with regard to lawn nutrients.

Stop by our organic lawn care store where you can find all your fertilizer needs.


Try not to use lawn fertilizer “step programs”


Chemical lawn fertilizers deliver high concentrations of quick release water-soluble nitrogen. It comes in the form of nitrate, which is immediately available to the grass. Step programs also contain environmentally unfriendly synthetic phosphorus.

Over applying grass fertilizers, nitrogen and phosphorus to the point of runoff is bad for earth. More particular our water system and everything involving water (aquatic plants and fish etc.)

When you fertilize with synthetic grass treatments, the plant only takes in a small percentage of the nutrients. As it passes through the soil and the rest continues to go through the soil and becomes a pollutant.

That’s why you need a lawn treatment several times a year for a step program to be effective. Once the chemical leaves the root system, that’s it. It craves more fertilizer and until you apply another step the plant doesn’t have what it needs. “Up and down” growth spurt then slow growth. No wonder there are so many insect, disease and weed issues with step program lawn fertilizers!

Why do you think the banning of synthetic lawn fertilizers and pesticides is becoming commonplace around the world?

Answer: because there is a better healthier way to have a nice grass.



When you apply organic fertilizers, they add organic matter to the soil. They, in turn feed the microbes. The biology then break down the organic matter so it is available to the grass plant. As long as there is organic matter and a healthy soil food web, feeding your grass slowly, evenly and naturally is effortless.

Organic grass is self-sustaining and even more beautiful, thick and green once the soil environment is established. Just by eliminating the use of chemicals on your turf. Then getting a soil test done is a good way you can start your own personal program. Just because it’s called organic lawn fertilizer doesn’t mean you can be reckless in your applications.

Excess leaching of any lawn fertilizer has to be avoided


Natural organic fertilizer can be applied in two different ways:

  • A granular product: Usually a feed, mineral or manure mix

  • A liquid product: A fish hydrolysate or mixture there of.



lawn fertilizers

Grass roots spread by rhizomes and stolons. That spreading is how the turf thickens and creates a beautiful green carpet. Peak times roots spread is in late summer and autumn. So if you’re going to apply a lawn treatment just one time a year it should be during that period.




Follow the links for each of the lawn nutrients. We’ll tell you why you need them and how to supply each in their organic form.

  • Nitrogen (N)
  • Phosphorus (P)
  • Potassium (K)
  • Calcium (Ca)
  • Magnesium (Mg)

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