How Can I Make My Lawn Thicker and Greener?

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How To Make Your Lawn Thicker and Greener Fast

I have written a few posts on how to improve lawns to help readers tackle problem areas. One of the most common questions though, “Is how can I make my lawn thicker and greener?” The good news is, you CAN make your lawn thicker and greener very quickly using the right fertiliser. However, remember, this is a quick solution and there is no substitute for good lawn husbandry, i.e. scarification and aeration.

There are two ways to make your lawn look thicker and greener quickly.

  • You can make lawns greener and thicker by using high nitrogen feeds.
  • You can make lawns look greener by using high iron lawn tonics.

Using high nitrogen fertiliser

High nitrogen fertilisers enable the grass to produce masses of fresh leafy growth and should only be used in the summer.

Every packet of fertiliser has an information box which contains the break down of the fertiliser. Look on the packet for the NPK information box, it often looks like the image below. In this example, the Nitrogen, Phosphorus, Potassium contents are 22-5-5. The first figure is nitrogen, the higher the number the better. Anything above 20 will be very effective at producing lots of healthy green growth in your lawn.

how to make grass greener fast
High Nitrogen at 22%

Using Iron to make your lawn look greener

High iron feeds can be applied by spreading granules or applying the fertiliser using a spray (usually sold as lawn tonic). As in the example above, look for the NPK info box on the back of the packet and if the fertiliser contains Iron there will be an addition to the NPK figures… “Fe“, this means the fertiliser contains iron, as you can see in the example below 14-3-7 +Fe %.

how to make my lawn greener and thicker
Fertiliser containing Iron (Fe)
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The Best Way to Keep Your Lawn Looking Good 

Fertilisers are very good at boosting lawns to look good but this can be expensive and not ideal for the environment. With an annual program of doing the basics of lawn care, your grass will start to thrive.

  1. Removing moss and thatch from your lawn (scarifying), will remove the competition to the grass, allowing more grass to grow, giving a thicker lawn.
  2. Aerating or slitting the lawn allows the lawn to breathe. Gases build up below soil level which cannot escape. These gases effectively suffocate the roots of the grass, stifling the grass growth above ground. 
  3. Removing weeds from your lawn. Using a selective weedkiller to kill lawn weeds removes the competition, allowing the grass more space to thrive, producing a thicker lawn.
  4. Using the correct fertiliser at the right time of year can keep your lawn in tip-top condition. Read my Simple Guide to Lawn Fertilisers.
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