Watering Your Lawn

It is important that residents use water efficiently at all times to protect Halton's water supply.

When can I water my lawn?

  • If your address number ends in an odd number your watering days are odd calendar days.
  • If your address number ends in an even number your watering days are even calendar days.
  • Since lawns require no more than 2.5 cm (1 inch) of water per week, it is not necessary to water on every odd or even day.

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What are “Outdoor Water Use Restrictions” issued from Halton Region?

There are two types of Outdoor Water Use Restrictions:

  • Mandatory odd/even water restriction: Halton asks residents to fully eliminate their outdoor water usage while the restriction notice is active.
  • Voluntary odd/even water restriction: Halton asks residents to restrict their outdoor water usage and to refrain from washing driveways or sidewalks.

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How much water does my lawn need?

  • Apply no more than 2.5 cm (1 inch) of water per week.
  • Too much watering can lead to poor growing conditions and disease.
  • Consider the soil type and surface features. Grass growing on compacted soil or on slopes requires more frequent light watering.
  • Use a rain gauge on your lawn to measure how much you’ve watered.

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What is the best time to water my lawn?

  • Early morning is the ideal time for watering.
    • This minimizes water lost through evaporation and wind.
    • Watering in the evening leaves the grass wet longer, increasing the risk of disease.
    • Grass growing near large trees may need to be watered more frequently because the tree roots absorb much of the soil's water.
  • Water only when your lawn needs it rather than on a set schedule. Rain fall reduces the need to water.
  • A healthy lawn can survive several weeks in a dormant state.
    • In long hot dry periods, a lawn may wilt, turn brown and become dormant. Common grass varieties like Kentucky bluegrass and fine fescues will turn green again when moisture returns.
    • Check the lawn regularly to detect any pests or other problems early. It may be more difficult to see insect damage in a dormant lawn.
  • Halton Region’s Water Use Bylaw ( Adobe Portable Document Format (PDF) 1.9MB) outlines all permitted usages, including water usage for odd and even numbered residences.
  • Your Naturally Green Calendar Adobe Portable Document Format (PDF) 3MB) is a guide to the best times to perform lawn maintenance activities.

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Other Water Saving Tips

  • Position sprinkler to only water desired areas to avoid watering roads, sidewalks or driveways. Use a sprinkler that expels water close to the ground to minimize water displacement by strong winds.
  • Place mulch on garden and flower beds to keep soil cool limiting moisture lost to evaporation.
  • Try using a Rain Barrel to collect rainfall to use in watering your garden and flower beds. To reduce mosquito breeding sites around your home, empty rain barrels weekly.

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Related Links

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