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FAQs about Spray Grass Industries Pty Ltd

Civil Contractors

  • Have you worked on Goverment sites / defence sites?

    Yes SGI has worked at all defence sites in Darwin/ Katherine and Delamere.

Erosion Control & Soil Stabilisation

  • what is stonewall?

    Polymer technology provides instant stabilisation in a wide range of applications including but not limited to: Exposed soil, sand or aggregate Stockpiles Berms and swales, Clearwater diversions and pond linings, Hazardous substance isolation, Sub-base road stabilisation Low to moderately trafficked areas.

  • what is hydromulch?

    combination of grass seed, fertiliser, binder (Glue), coloured dye and a mulch product. This mulch can consist of either wood fibre, paper or straw and can be alternated to suit the particular job requirements. All products are combined in a specially designed tank and sprayed onto the ground as a paper mache type application. The hydromulch provides the seed with protection from the elements and

  • Do you spray native seed?

    Yes we can spray native seed. Native seed is collected by another source at certain times of the year so it is advised to order your seed early so we can ensure seed is available.

  • why does it look like the native seed is not growing as thick as i wanted within 2 months?

    Native seed is not like grass seed which will grow within weeks, Some Native seed can remain dormant from one month up to two years to germinate, you will see the full result over the next two to three years.

Irrigation & Sprinkler Systems

  • Do you do permanent irrigation on domestic houses?

    not permanent but we do provide temporary irrigation for the germination period generally 6 to 8 weeks then we will collect the irrigation.

  • Do you do landscaping?


Lawn & Turf Supplies

  • What grass seed do you use?

    We prodominantly use a dryland grass seed mix which is well suited to the Northern Territory and does not require enourmous amounts of water to maintain. The seed mix is Paspalum Notatum pensacola, Paspalum Notatum Argentine, Cynodon Dactylon Couch.

  • Do you spray other grass seed?

    Yes if requested we can source other seed varieties. We will also ensure that the grass seed is suited to the Northern Territory, because you and I would both like to see great result at the end of the job.

Mulch Supplies

  • what mulch do you provide?

    shredded paper / flexterra/ proganics/ biosoil/ EFM

COVID-19 Safety Measures

Business Operations

  • Business operating as usual
  • Delivery
  • In-person visits


  • Reports


  • Hydromulch (spray grass) with paper/ flexterra /proganic / biosoil / EFM mulch
  • Hydro seeding application
  • Overseeding application
  • Native revegetation
  • Mulch supplier - paper/ flexterra/ proganics / bio soil/ EFM
  • Grass maintenance/mowing
  • Lawn establishment till full germination.
  • Topsoil supply & levelling preparation for hydromulch
  • Erosion & dust control
  • Fertilizer or lime spreading
  • Ground aeration
  • Permanent & temporary irrigation
  • Stonewall application
  • Jute mesh installation

Ways to Pay

  • CashCash
  • ChequeCheque


  • Certificate of Conservation Lands & Management 1 & 2
  • Certificate of Irrigation 3
  • Certificate in Agriculture
  • Certificate 3 Bobcat & Excavator
  • Certificate 3 Civil & Earthmoving Plant Machinery
  • white card and Ochre card
  • Working at height
  • Cal Accreditation D9-16209-01-22
  • ABN 44 154 741 116
verifiedVerified ABN #5 of 23


  • All jobs big or small
  • Mines
  • Civil construction
  • Commercial construction
  • Industrial construction
  • Councils
  • Lands & management
  • Dept of infrastructure
  • Aboriginal communities
  • Public
  • Private
  • Building construction firms
  • Sub division works

About Spray Grass Industries Pty Ltd

S.G.I. Spray Grass Industries was established in November 2011, originally trading as Koole Irrigation from 1988 to 2011.

We are a

S.G.I. Spray Grass Industries was established in November 2011, originally trading as Koole Irrigation from 1988 to 2011.

We are a family run business and pride ourselves as Territorian's, who commit 110% to the job.

We have been in the Territory for 30 years and servicing surrounding areas so we have an excellent idea of what works best in local conditions, especially during the seasonal extremes.

We have more than 33 years’ experience in permanent and temporary irrigation, pump and tank set up, drainage, jute mesh and erosion control application, earthworks, mowing and establishing lawns. For the last 10 years, we have extended our business to include sowing and spraying of seed and native revegetation.

We have 2 trucks to cater for any size jobs. One truck sprays a capacity of 500 square metres, whilst the other sprays up to a capacity of 2000 square metres.
We have the capacity and experience to successfully hydromulch , hydroseed, overseed, fertilise, set temporary irrigation and maintain all aspects of your grassing requirements through out the germination period.

We have a certificate for CAL accreditation. No job is too big for our team.