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How to sow a lawn from seed

The best time of year to sow a new lawn from seed is spring or autumn, with germination taking 7 to 21 days in ideal conditions. Typical daily temperatures need to be in excess of 13ºC for successful germination.

Info centre - seeding a lawn video

Preparing the ground

  • Remove existing lawns or weeds: Clear any existing grass using a turf cutter, spade, or approved weed killer.

  • Cultivate the soil: Dig over the area to a depth of 150mm-220mm, ideally using a rotovator, removing all weeds and large stones.

  • Add nutrient-rich topsoil: Rolawn Turf & Lawn Seeding Topsoil provides the ideal base for sowing seed. It is blended with Rolawn GroRight® Lawn Establishment Fertiliser to ensure a lawn gets off to the best possible start. Alternatively, mix Rolawn Soil Improver into the soil to improve the structure and add nutrients.

  • Firm and level the soil: Lightly roll or tread the soil to firm it down, then rake to a smooth, level finish.

Sowing the seed

  • Choose the right seed: For premium results, use Medallion® Lawn Seed 1kg for smaller areas or Medallion® Lawn Seed 20kg for larger lawns. Both contain the same professional-grade seed mix used in Rolawn’s award-winning Medallion® Turf.

  • Apply evenly: Sow the seed in multiple directions to ensure even coverage, lightly raking it into the top 12–25mm of soil.

  • Firm: Firm down by treading or lightly rolling.

  • Water: The seed bed must be kept moist. Water well, using a fine spray if necessary.

Watch our Seeding a Lawn Video for a step-by-step visual guide.


Aftercare

  • Keep the seeded area consistently moist until established, watering daily during dry spells.

  • Start mowing when grass is 50-80mm high, then gradually trim down to 25mm as the lawn thickens up.

  • When seeding a new lawn, weeds need to be controlled and removed early to prevent competition with young grass.

 

Seed rates for new lawns:

Rolawn Medallion® Premium Lawn Seed: 35g/m²