Which soil

Which soil is best for turf?

Whether you are installing a new lawn, or you need to top-dress an existing lawn, which is the best soil for turf?

Turf Underlay

Turf underlay is the foundation or bed for your turf to grow on, you only get one chance to get this right as once your turf is down it’s too late. This is generally a mix of the following;

  • Washed river sand, medium to course particles – some % of clay is present which helps to compact and form a base.
  • Some heavier soil is generally added which helps to hold moisture and mixed with the sand. This creates a free-flowing profile for water movement.
  • A composted material is then added. This can be green waste, chicken or animal manure and some natural nutrients to help balance your PH levels.

Once this is all mixed together it will form the turf underlay you require. A firm base that allows water movement downwards and allows for water retention. This allows the turf roots system can develop and establish. The aim is to promote a healthy root system that will protect the turf from weather conditions such as droughts and winter frost.

When you put in your turf underlay, it is recommended to apply to a depth of 100mm as a minimum. Sometimes more is necessary dependent on the base you are working with. Prior to spreading your turf underlay spray out all existing weeds and grasses. Once you spread your turf underlay ensure it is leveled, rolled and watered prior to installing your new turf.

Top dressing

For a top-dressing material, we always like to use Plasterers Sand. It doesn’t compact quite as hard as brickie’s sand. It is generally easier to screed and level due to the lower clay and silt content and reduces the likelihood of the surface crusting and become hydrophobic.

Top-dressing your lawn allows you the opportunity to fill in any unevenness and should only be applied at no more than 5-10mm in thickness at a time. The sand should be rubbed in evenly using a lawn level bar, working the sand down into the turf thatch layer. When preparing your turf for topdressing apply a general-purpose fertiliser, wetting agent. Water this in well a couple of days prior to top-dressing. This will give your turf the growth required to surge through the topdressing sand.

Related articles

Checking your soils pH level

Top Dressing your lawn 

How to prepare for your new lawn

For information on caring for your lawn visit our Lawn Care Page.

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    - Kevin and Florence Handford, Port Kembla

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    - James, South Coast NSW

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    - Mark, Lake Conjola

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    - Matt, Wollongong

  • I would just like to thank you and particularly Jed and Jamie who worked their butts off today, and have done a fantastic job turfing our front lawn.   Your whole operation is totally professional and  we could not be more pleased with the end result.   Thanks again.

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    - Mark, Warilla High School

  • Joe, Scott and the team did a great job yesterday and despite having all four seasons during the afternoon, we smashed the turf laying records and got the job done.

    - Jeff, Kangaroo Valley

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  • Just wanted to thank you for the great product excellent service and the most professional experience we have had so far with our renovation. Josh and Joe were fantastic. Please feel free to use us as a referee to other potential clients, they won't regret it.

    - Victoria & Gary, Illawarra

  • Thank you for your help in the installation of our new turf – I am really happy with it and amazed at what a difference it has made to the backyard. Your company made everything so very easy, I will certainly be recommending you. If ever I need turf laid again Turfco will be the first company I turn to.

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    - Fernhill Soccer Club

  • Thank you Marcus & Joe for such excellent customer service. Marcus gave us good advice on what turf to use and had no problems coming to offer his advice a second time to help us keep to our budget. Joe and his team were polite, friendly and efficient and did a terrific job on our very large backyard. It looks amazing. We've mowed it twice now and it looks like it has been there forever.

    - Berry

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    - Lile, Keiraville

  • Thanks Marcus! I have to say you and your team are one of the most professional trades I have come across and the lawn looks great! 

    - Belinda, Greenhills Beach

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