Fertilizer Basics for Homeowners

Lawn Care 101 / Fertilizer Basics

Fertilizer Basics for Homeowners

Understanding fertilizer numbers makes lawn care less confusing.

The Numbers: NPK

Nitrogen (N): Green growth and blade density

Phosphorus (P): Root development

Potassium (K): Stress tolerance and disease resistance

Every fertilizer shows three numbers: Nitrogen (N) – Phosphorus (P) – Potassium (K).

When to Apply

  • Spring: Light application to wake up lawn
  • Fall: Heavier application to build roots
  • Summer: Avoid during heat stress

What SafeLawn Uses

We use algae-powered treatments that support natural processes—not synthetic spikes that can burn grass.

Quick Summary

Let SafeLawn handle the science. We time applications to your lawn’s needs.

Get professional fertilizer applications

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