If your lawn is looking dry and patchy, you might be tempted to water it more often. I used to think the same thing, but it turns out the real issue isn’t how often you water, it’s how deeply.
A quick sprinkle every few days might seem like a good idea, but it actually teaches your grass to expect constant attention instead of growing those strong, deep roots you really want.
Deeper watering is key
According to Better Homes and Gardens garden editor, Jenny Dillon, lawns respond best to fewer, deeper watering sessions rather than regular light ones.
“Lawns are very thirsty, but you can train them into needing water just once a week, instead of every three to four days,” she says.
“When you resume watering after winter, make sure you give grass a long, deep soak to encourage roots to go deeper and produce more vigorous, higher-quality turf.”
How long should you water your lawn for?
How much water your lawn needs depends on whether it’s newly planted or fully established. While it’s tempting to focus on how often you water, the real goal is to ensure moisture reaches deep into the soil where roots grow.
Newly planted lawn
New turf can take up to 12 months to fully establish. During this time, it requires more consistent watering to help the roots grow deeper into the soil.
When establishing your lawn, aim to moisten the soil to a depth of around 150mm. How long this takes depends on your watering method, sprinkler type, and tap pressure, so it’s best to water slowly and check progress rather than relying on a fixed time.
Established lawn
Once your lawn is established, it can be watered less frequently but more deeply. Water as needed during dry periods, especially when there hasn’t been much rainfall.
A simple guide is to water long enough for moisture to soak into the root zone, rather than just wetting the surface.
Signs your grass needs watering
Your lawn will usually tell you when it’s thirsty. Look for:
- Wilting or a dull green colour
- Grass that doesn’t spring back after being walked on
You can also try the barefoot test. Walk across the lawn with bare feet. If your footprint remains and the grass doesn’t bounce back, it’s time to water.
A quick watering tip
If you notice water pooling or running off the surface, stop watering and allow it to soak in before continuing. This helps prevent waste and encourages deeper root growth.
How often should you water your lawn?
As mentioned above, how often you water your lawn isn’t as important as how well you do it. But here is a rough guide for most Aussie lawns:
- Summer: 1–3 times per week
- Spring and autumn: About once a week
- Winter: Only during extended dry or warm periods
Remember: Deeper watering helps the soil hold onto moisture for longer, so you don’t have to water as often, and your lawn stands a better chance during those hot spells.
The best time to water your lawn
During the warmer months, morning watering is recommended because cooler temperatures reduce evaporation and give water time to soak in.
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