The best time to water your garden in Melbourne is early morning (between 6 AM and 9 AM). This allows the soil to absorb moisture before the heat of the day causes excessive evaporation, ensuring that plants receive the hydration they need to thrive. Morning watering also gives plants enough time to dry out slightly before the evening, reducing the risk of fungal diseases, which thrive in damp conditions. Plants absorb water more efficiently in the early hours, as temperatures are cooler, and there is usually less wind to disrupt absorption.
If morning watering isn’t possible, late afternoon (after 4 PM but before sunset) is the next best option. This timing allows plants to rehydrate after a warm day without excessive water loss. However, it is important to avoid watering too late in the evening, as moisture that lingers overnight can create ideal conditions for fungal infections like powdery mildew, black spot, and root rot.
What to Avoid: Watering during the middle of the day is inefficient due to the intense sun and wind, which accelerate evaporation before the moisture can reach plant roots. Additionally, using sprinklers in hot weather can lead to water droplets acting as tiny magnifying glasses, potentially scorching plant leaves.
To maximise water efficiency and plant health, consider deep, infrequent watering rather than light daily watering. This encourages deep root growth, making plants more drought-resistant. Using mulch around garden beds also helps retain soil moisture, regulates temperature, and reduces water runoff. Drip irrigation or soaker hoses can further improve water efficiency by delivering moisture directly to the root zone, minimising wastage.
By following these watering best practices, you can help your garden thrive year-round while making the most of Melbourne’s often unpredictable weather conditions.