Watering Your Lawn – Facts & Advice

Good soil profile

Good Soil Profile

The ideal composition for your soil to function properly is 25% water and 25% air.  However, due to the current conditions of prolonged dry weather, the composition of our soil has changed from the ideal. Air levels in soil are now around 40% and water typically below 10%! This impacts how well our soil is able to function, which affects how the grass in our lawns grows.

Watering facts & advice

  • A lawn will evaporate approximately 3 mm of water per day which will need replacing
  • If ground is especially hard, it is worth aerating the lawn by spiking the lawn with a garden folk to allow the water to drain down in to the soil and roots.
  • Irrigate in the evening or early morning to reduce evaporation.
  • Avoid watering on a daily basis as this develops shallow root growth. 
  • Use a sprinkler to give your lawn a good soaking every 4-7 to days for an hour or more will have a much better effect.
  • Apply a Wetting Agent which will help get water in to the soil where it can be used by the grass

Our soil meters are regularly recording ‘dry lawn’

What is the cost of watering?

  • A lawn will evaporate approximately 3 mm of water per day which will need replacing
  • Irrigate your lawn once per week applying 25 mm (1 inch of rain per week)
    • This equates to 2.5 m3 of water on a 100 m2 lawn
    • The cost of 2.5 m3 is £3.82 (based on current price of £1.53/m3)
  • Irrigate in the evening or early morning to reduce evaporation
Sprinkler watering lawn

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