Tips for the ultimate green lawn

<p><em>From GARDENA Brand Ambassador Sarah the Gardener</em></p><p>It is important to remember that a lawn is a living thing made up of thousands of plants with roots that don&rsquo;t go very deep into the soil.</p>

Make a good start

  • The best time for a new lawn or to repair damage is in spring and autumn.
  • There is a lawn seed for every situation. Choose one that suits your climate and how you use your lawn.
  • Prepare the soil well. Have a good quality, weed free topsoil, rich in nutrients and free from rocks and stones.
  • It takes a year for a new lawn to establish so keep it well watered and treat with care.


Taking care of the lawn


  • It is better to mow little and often.
  • Don’t remove more than a third of the grass at a time.
  • Grass grows faster in warm moist conditions and slower in hot dry weather.
  • In cool conditions don’t mow shorter than 2–3cm.
  • In warm conditions increase the height to 4–5 cm. This helps shade the base of the plant and conserves moisture.
  • Longer grass looks lusher than a short lawn.
  • Avoid mowing wet or frozen grass.
  • Use a catcher or rake up thick and heavy clippings.
  • A good quality lawn mower with sharp blades can make all the difference.


  • Use a lawn fertiliser to rejuvenate the lawn in spring and autumn.
  • Key nutrients a lawn needs are Nitrogen (N) for lush green growth, phosphorus (P) for root health, potassium (K) for overall wellbeing and pest and disease resistance and iron (Fe) for the lush deep green colour and to help suppress moss.
  • Follow the directions on the packet as too much can cause problems.
  • Evenly apply the fertiliser to the lawn. A spreader can help ensure good coverage.
  • A light layer of grass clippings left after mowing can return nutrients to the soil, regularly feeding the lawn.


  • Like all plants, grass needs a constantly moist soil. Most of the time the rain is enough.
  • Summer can be problematic due to droughts and water bans. Choose a grass that copes well in a low water environment.
  • Over-watering, poor drainage or compact soil can be just as harmful as not watering enough.
  • The best time to water is early in the morning with a good deep soak.
  • Avoid watering little and often.


  • Regular mowing can reduce the vigour of perennial weeds.
  • Mowing too short can give weeds room to establish.
  • Don’t let weeds go to seed.
  • Onehunga Prickle weed needs to be treated in early spring.