How to choose the right fertiliser for your lawn

If you’re starting to feel the days getting cooler, chances are your lawn is feeling it, too.

That’s why now is the perfect time to choose the right lawn fertiliser and get your lawn into tip-top shape before the full wrath of winter arrives.

So how do you go about choosing the right fertiliser for your lawn?

1. Determine your turf variety

There are a number of common types of turf varieties used in Australia.

Such common varieties are Couch Grass, Zoysia Grass, Tall Fescue, Kikuyu Grass and Soft Leaf Buffalo Grass.

If you are unsure about the variety of your lawn, it’s best to speak with your turf provider.

You can also follow our specialised lawn care programs for every lawn.

2. Determined the soil quality

A pH test is one of the best ways to test your turf’s soil quality.

A pH test will reveal your soil’s level of acidity represented by a value between 0 and 14.

It’s important to understand the quality of your soil so that you can make better-informed decisions when it comes to choosing the right fertiliser.

A pH value of over 7 indicates you have alkaline soil and your turf is in need of phosphorus and potentially iron.

A pH level that falls below 7 indicates your soil is acidic and is in need of potassium and potentially magnesium.

By understanding your soil quality and pH results, you’ll be able to choose the right fertiliser for your lawn according to the nutrients required. You can also access details about your lawn by purchasing a LawnPride Soil Test.

3. Choose the right fertiliser nutrients for your lawn

Each lawn fertiliser comes with three macro-nutrients, Nitrogen, Phosphorus and Potassium.

Depending on the type of lawn and soil quality, it will require a fertiliser that has a certain blend of these three nutrients to thrive.


Nitrogen is usually the highest percentage found in fertiliser.

If your grass is beginning to look yellow in some areas, it’s likely Nitrogen-deficient.

Nitrogen has properties that improve the health of turf leaves and therefore helps your lawn appear greener, thicker and fresher.

Potassium (K)

Potassium is required to help your lawn’s overall functions.

It is the key nutrient to strengthening cell walls and therefore make turf more durable and withstand extreme weather conditions.


Phosphorus is used for the healthy growth of roots.

Only a small percentage is usually required.

The ratio of Nitrogen, Phosphorus, and Potassium plays a part in determining the right fertiliser for your lawn.

Conducting a soil test will direct you in the right direction in choosing the right fertiliser and NPK ratio for your lawn.

4. Talk to the experts

It can be difficult to understand exactly what your lawn requires to bring it to full health before winter sets in.
If you have questions or you just want some advice from the experts, talk to one of our friendly LawnPride specialists today and make the right choice of fertiliser for your lawn.