What is the Best Grass Fertiliser?

We’re often asked by our customers across Macclesfield how to keep their lawn looking green, even, and healthy all year round. One of the most important factors is using the right grass fertiliser—but with so many products on the market, it can be difficult to know what actually works...

I’ll break down what makes a great grass fertiliser, share the product we trust for quick results, and give some practical tips on how and when to apply it.

What Does Grass Fertiliser Actually Do?

A good grass fertiliser provides your lawn with the essential nutrients it needs to grow strong and stay green. These typically include:

  • Nitrogen (N) – for leafy growth and rich colour

  • Phosphorus (P) – for healthy root development

  • Potassium (K) – for resilience and disease resistance

Different fertilisers contain different ratios of these nutrients, depending on what your lawn needs—whether it’s just starting to grow or recovering from winter damage.

Our Go-To Product is Lawn Super Seed [Fast Growth] By Grass Gains

At Macclandscapes, we use a product called Lawn Super Seed [Fast Growth] when we’re helping customers fix patchy lawns or start fresh from bare soil during a project. It’s not just any seed—it’s treated with Headstart Gold, which helps it establish much quicker than your average lawn seed.

Here’s why we recommend it:

  • Quick to establish – Great for getting visible results within weeks

  • Perfect for patching – Works well on bare or worn-out spots

  • Specially selected seed mix – Adaptable to different soil and weather conditions

  • Headstart Gold treatment – Gives the seed a real advantage during germination

  • Reliable performance – We’ve used it across multiple gardens with consistent success

If you’re reseeding or trying to restore a tired lawn, this seed and fertiliser combo is a great place to start.

When Is the Best Time to Fertilise Your Lawn?

We usually recommend applying grass fertiliser in spring and autumn, when temperatures are mild and there’s some natural rainfall. These are the times when grass grows best, and nutrients will be absorbed efficiently.

Avoid fertilising in:

  • Very hot summer weather – It can stress the grass

  • Frozen or snow-covered ground – Nutrients won’t be absorbed

  • Heavy rain conditions – Risk of nutrient runoff

If you’re patching or reseeding with a product like Lawn Super Seed, choose a dry, calm day with light rain forecast in the days ahead.

How to Apply Grass Fertiliser Effectively

Here’s how we apply fertiliser on our landscaping jobs—and you can follow the same steps at home:

  1. Mow the lawn first – Cut it short to help the fertiliser reach the soil

  2. Rake and clear – Remove moss, thatch, and debris

  3. Apply evenly – Use a spreader if possible to avoid patches

  4. Water in well – This activates the fertiliser and helps it soak into the root zone

  5. Avoid foot traffic – Try to keep off the lawn for a few days if possible

Tip: If you’re also seeding, combine the fertiliser and seed mix together and rake lightly into the surface. This helps improve contact with the soil.

Organic vs Chemical Fertilisers

We’re sometimes asked about the difference between organic and chemical grass fertilisers. Here’s a quick comparison:

Organic fertiliser:

  • Made from natural materials (e.g. compost, bone meal)

  • Slower to act, but improves soil structure

  • Better for long-term soil health

  • May have an odour

Chemical fertiliser:

  • Fast results, especially for colour and growth

  • Can be tailored to specific NPK ratios

  • Doesn’t always improve soil in the long term

  • Needs to be applied with care to avoid overfeeding

We tend to use a balanced approach depending on the job. If it’s urgent and the lawn needs a quick boost, chemical fertiliser or treated seed is ideal. For long-term lawn care, organic methods can be blended in through the seasons.

Common Mistakes to Avoid

Even the best grass fertiliser won’t work properly if applied incorrectly. Here are some things we always try to avoid:

  • Over-applying fertiliser – Can scorch the grass or pollute nearby drains

  • Skipping watering – The nutrients won’t activate without moisture

  • Using the wrong type – Not all lawns need the same balance of nutrients

  • Applying at the wrong time – Fertilising too early or too late in the year won’t help

We’ve seen plenty of lawns damaged by good intentions. If you're unsure, we're happy to offer advice based on your lawn type and goals. Just contact us here for tailored recommendations.

Our Approach at Macclandscapes

We don’t just lay turf and walk away—we help homeowners understand how to maintain a great lawn long after the job is done. Whether you’re fixing patchy grass, laying new turf, or starting from bare ground, we’ll guide you through the right feeding schedule and product choices.

For customers in Macclesfield and nearby areas, we often supply or recommend products like Lawn Super Seed and the tools to go with it. We’ll even apply it for you as part of a full lawn care package if needed during a project.

Check out Dan (our founder) applying the Lawn Super Seed fertiliser during one of our current projects!