The importance of balanced fertiliser application

Want to make sure your lawn is getting its proper nutrients? A proper fertiliser application programme is vital.

Fertiliser application plays a key role in lawn care year-round.

As we begin to move closer to spring, now is a good time to start thinking about the balance of nutrients that your lawn will need for the upcoming months.

Whilst it is important that the right nutrients reach the grassroots for them to be taken up by the plant, it is equally vital that the plant receives the correct level of each nutrient if it is to regenerate, achieve strong growth, and remain healthy.

So what are the key nutrients that your lawn needs at this time of year?

And what part does each of them play in cultivating a quality lawn?

We’ve put together a list of all of the key nutrients found in grass fertiliser and their uses.


Nitrogen is important to healthy grass growth.

Soils don’t naturally contain the required amounts of nitrogen needed to promote healthy grass growth and colour.

However – while shortages of nitrogen can cause a yellowing of grass leaves, a reduction in growth, thinning of the sward, and disease susceptibility.

Over-application reduces root depth and increases susceptibility to climatic stresses and softer growth.

Therefore, applying the right amount is key, especially during the early spring period.


Potassium, or potash, is the second of the macronutrients found in grass fertiliser.

It works with nitrogen to assist in photosynthesis and enhance the grass plants’ ability to withstand wear and tear, disease and drought conditions.

This makes it important to prepare your lawn before the weather starts to warm.

Furthermore, because of the part that potassium plays in maintaining grass health, there must be sufficient levels available throughout the year.

But it becomes even more important that increased levels are available in the autumn period if the plant is to withstand the winter months without showing a greater susceptibility to disease.


Phosphates are important in that they allow for strong grass seed germination, root growth and plant establishment.

Lawn grasses need less phosphorus than nitrogen and potash. Some soils are also naturally high in phosphate and do not require large amounts of nutrients to be applied throughout the year.

It is also worth remembering that phosphate breaks down in the soil far slower than nitrogen or potash, and over-application can lead to anaerobic material forming.

This can sour the soil, reduce plant quality, and also result in poor drainage.

Each of these nutrients plays a vital role in aiding your grass plant’s health and growth throughout the year.

Therefore, it’s a good idea to start thinking about giving your lawn that extra boost now by scheduling a visit from our TruGreen Lawncare experts.

To see our fertiliser process in action, check out the above video from one of our lawn care experts: Richard from Rich Lawns and TruGreen Milton Keynes

Get help from your local lawn care experts

Find your nearest TruGreen businesses to learn more, or book your free 14-Point lawn analysis today.

Upon arrival, our experts will assess the condition of your lawn and draw up a professional lawn care plan to best suit your and your beloved lawn.