Can Compost Replace Lawn Fertiliser?

Another common question we get from homeowners is: “Do I still need fertiliser if I use compost on my lawn?”

The short answer is—compost can do most of the work that fertiliser does, but it does it in a slower, more natural way. Let’s break down how compost works and whether it can completely replace chemical lawn food.

How Compost Works

Compost feeds your soil first, not just your grass. That’s the biggest difference compared to fertiliser.

• It releases nutrients gradually, preventing burn or nutrient overload.

• It improves soil texture and water retention.

• It adds beneficial microbes that help your lawn absorb nutrients efficiently.

Our Special Compost Mix takes this a step further with its balanced formula of:

• Sifted, weed-free topsoil

• Premium organic compost

• Superphosphate, which encourages strong root growth

This blend provides slow-release feeding for months—creating a sustainable nutrient cycle for Kikuyu and LM lawns.

Compost vs. Fertiliser: What’s the Difference?

Feature	Compost	Fertiliser
Nutrient Release	Slow and steady	Fast and short-term
Soil Health	Improves structure & microbes	Adds nutrients only
Risk of Burn	None	Possible if overused
Long-Term Results	Builds soil fertility	Needs regular re-application

In short, compost feeds the soil; fertiliser feeds the plant.

When to Use Compost Instead of Fertiliser

• Before installing new turf: A 5–10 cm compost layer builds a healthy foundation.

• In spring and autumn: Top-dress your lawn to replenish nutrients naturally.

• If you prefer organic lawn care: Compost supports growth without synthetic chemicals.

When You Might Still Need Fertiliser

If your lawn has severe yellowing or you need an instant boost for an event or project, a quick-release fertiliser can help. However, follow up with compost afterward to restore soil balance.

✅ The Bottom Line

While chemical fertilisers provide a quick fix, compost delivers lasting health for your lawn and soil. Regular use of Quick Lawn’s Special Compost Mix keeps Kikuyu and LM grass greener, thicker, and more drought-resistant—all without harsh chemicals.