Top Tips for a Water Efficient Garden

Don’t Make Changes to Your Garden in Summer

Summer is the time to maintain and enjoy your garden. The ideal time for new plants, installing irrigation systems and other major changes is autumn, as the garden has nine months to recover before the heat of next summer.

You will need to maintain your garden in summer by keeping up the mulch, pruning and increasing shade. In summer, disturbed soil loses its moisture rapidly and makes it hard for gardens to recover.

In autumn, particularly once rain has fallen, your new garden will be less labour intensive to create and more likely to prosper.

Mulch

  • Mulch can reduce evaporation from soil by up to 70 per cent. Mulch is like blanket on the soil, keeping it cool and protecting it from drying out.
  • Mulch also improves soil structure, increasing water retention, soil nutrients and worm activity. Mulch is essential if you are going to maintain your garden through periods of low rainfall.

Watering

  • Here’s a test: before watering your garden, push aside the mulch and put your finger into the soil. If it is moist below the surface, then you don’t need to water.
  • Many healthy plants in good soils are drought-tolerant and even in dry weather conditions will not need additional watering once established.
  • With your existing plants try watering less frequently and then not at all.
  • Observe them for signs of stress including wilting and leaf fall. You may be surprised how tough many of your plants are.
  • Less frequent deep watering encourages deep rooted plants better equipped to withstand hot, dry days.

Soil Additives

One of the problems with soil that has dried out is it repels water, wasting the precious water you put on it. Soil wetting agents and water retention products can dramatically improve the success of new plantings and water absorption in your garden, particularly if it is already very dry.

Water crystals absorb water and roots can access this as the soil around dries out. Wetting agents enable water to soak in and also hold water in the root zone.

  • Frequently Asked Questions

    • Are there any particular times when I should not water?

      Answer

      Don’t water in the middle of the day, in windy conditions, or if rain is likely.
    • How do I avoid water runoff?

      Answer

      Make a small dam from mulch and soil to avoid water running off the soil.
    • How should I water my plants?

      Answer

      Water the roots of plants rather than the leaves, reducing windspray and evaporation.
    • Is there a difference in how I should treat different types of grass?

      Answer

      Cool season grasses should be left longer in summer but warm season grasses (couch, buffalo) can be kept short.
    • What if my plants are struggling?

      Answer

      Replace struggling plants in autumn with drought-tolerant species.