Ransley Turf - Established 1951
lawn care
24 March 2026

** Choosing the Right Fertiliser for a Healthy Lawn: A Comprehensive Guide

** Selecting the appropriate fertiliser is crucial for maintaining a lush, green lawn. This guide from Ransley Turf explores the essentials of lawn nutrition, seasonal care, and how to address common lawn issues with our specialised products.

Choosing the Right Fertiliser for a Healthy Lawn: A Comprehensive Guide

A vibrant, green lawn is the pride of any garden, but achieving and maintaining this requires more than just regular mowing and watering. Understanding the nutritional needs of your grass and selecting the appropriate fertiliser is essential for optimal growth and health. At Ransley Turf, we believe that a healthy lawn starts with the right science. In this guide, we'll delve into the fundamentals of lawn nutrition, the importance of seasonal care, and how to address common lawn challenges using our specialised products.

1. Understanding the Essentials: N-P-K Explained

Lawn fertilisers are formulated with a blend of macronutrients and micronutrients that support grass health. The three primary macronutrients are:

  • Nitrogen (N): Encourages lush, green leaf growth.

  • Phosphorus (P): Focuses on root development and energy transfer.

  • Potassium (K): Builds "hardiness" and disease resistance.

Specialised fertilisers also include micronutrients like Calcium (Ca), Iron (Fe), Magnesium (Mg), Zinc (Zn), and Sulphur (S), which act like vitamins for your grass.

2. Think Season First: Your Seasonal Lawn Care Calendar

Applying the right fertiliser at the appropriate time is crucial for lawn health. Using the wrong feed at the wrong time can hinder growth and waste resources.

Spring & Summer Lawn Fertiliser

During the growing season, nitrogen is paramount as it fuels vibrant green colour and robust growth.

Recommended Product: 9-7-7 Nutrigrow Spring/Summer Blend Fertiliser 20kg

Why: The higher 9% Nitrogen ratio supports rapid growth and thickness, ensuring your lawn thrives during the warmer months.

Autumn & Winter Lawn Fertiliser

In cooler months, it's essential to reduce nitrogen levels. High nitrogen in winter can encourage soft new growth susceptible to frost damage and fungal infections.

Recommended Product: 3-12-12 Nutrigrow Autumn Turf Pro Compound Fertiliser 20kg

Why: With only 3% Nitrogen but 12% Phosphorus and Potassium, this formula hardens the grass and builds deep root strength to survive the winter.

3. Identify Your Lawn’s Challenges

Sometimes, your lawn requires more than just a general feed. Addressing specific issues with targeted treatments can restore its health and appearance.

Common Lawn Issues and Solutions

| The Problem | The Solution | The Science | |------------------------|------------------------------------------|----------------------------------------------------------------------------------------------------| | Moss Infestation | Nutrigrow High Fe (Iron) | Iron (Fe) blackens moss, making it easy to remove via scarifying. | Yellowing Grass | Magnesium (Mg) | Added Magnesium treats "chlorosis" (yellowing) by boosting chlorophyll production. | Excessive Weeds | Feed, Weed & Moss Killer | Uses selective herbicides (Dicamba/Mecoprop-p) to kill weeds while feeding the grass. | Waterlogging | Liquid Foliar Feed | When soil is saturated, roots "shut down." A liquid spray provides an immediate potassium boost through the leaves. | Drought Stress | Amino Acid Biostimulants | Helps the lawn green up faster once the rains return after a heatwave.

4. Professional Tips for Lawn Health

Maintaining a perfect lawn doesn't have to be a guessing game. Here are some expert tips to guide you:

  • Less is More: Rather than applying numerous treatments, focus on 2 to 4 strategic applications per year.

  • Check the Weather: Avoid applying heavy granular feeds during a drought; choose a liquid feed or wait for rain.

  • Safety First: Always use plant protection products safely. Only certified users should apply professional-grade pesticides.

Get Specialist Advice from Ransley Turf

Maintaining a perfect lawn doesn't have to be a guessing game. If you have specific questions about your soil type or grass variety, the team at Ransley Turf is here to help.

By understanding your lawn's nutritional needs and addressing seasonal and specific challenges with the right products, you can achieve a lush, healthy lawn that enhances the beauty of your garden.

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