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Watering Your Lawn During the Summer and the Rest of the Year

Last Updated: April 05, 2024

Maintaining a healthy and green lawn is crucial, no matter the season. For that to happen, correct watering is essential for lawn care. But this also raises the question: How long should you water your lawn, and does it change depending on the season? This blog offers general advice to ensure your sprinkler systems provide optimal hydration for your garden, applicable across various climates and seasons.

How Long Should It Take to Run Sprinklers in the Garden?

This depends on several factors: the sprinkler types, the season you’re in, and whether the lawn is established or not. As a general rule, you should turn off your sprinklers when it’s raining since too much water may cause the grass to rot. However, keep in mind that sometimes this may not be always be the case.

If you’re dealing with a new lawn, you should note that their watering needs are different from established lawns. For new lawns, it usually takes at least 12 months before it grows a root system that is deep enough to achieve maximum drought tolerance. You should apply for a watering exemption and obtain a Certificate of Exemption from the Water Corporation if you will be taking care of a new lawn.

The following schedule is recommended for new lawns:

October 1 to March 31 (Hot Weather) April 1 to September 30 (Mild Weather)
Days 1-10:

Amount: 3.5 mm

Frequency: Thrice a day

Time: Before 9 AM, 12 NN, and at 3 PM

Days 1-14:

Amount: 4 mm

Frequency: Twice daily

Time: Before 9 AM and at 2 PM

Days 11-20:

Amount: 5 mm

Frequency: Twice daily

Time: 9 AM and 3 PM

Days 15-28:

Amount: 7.5 mm

Frequency: Once daily

Time: Before 9 AM

Days 21-28:

Amount: 10 mm

Frequency: Once a day

Time: Before 9 AM

Days 29-35:

Amount: 7.5 mm

Frequency: Every other day

Time: Before 9 AM

Days 29-42:

Amount: 10 mm

Frequency: Every other day

Time: Before 9 AM

Note that schedule may only be followed once you have been given a watering exemption. Also note that for new lawns, reticulation system may still be a bit more difficult to use when watering, so there will be times that you will need to hand water some areas.

How Long Should Sprinklers Run In Each Zone?

Each sprinkler system has a different recommendation. Consider the different reticulation systems being used in Perth when determining how long each sprinkler would run. In general, however, these are recommended sprinkler run times:

Pop up/fixed spray sprinklers

Pop up or fixed spray sprinklers are the traditional sprinklers which provide water coverage across the lawn. An important thing to remember when placing these sprinklers is that they must be placed in areas just right so that they create an overlap. This sprinkler system goes back into the ground once it finishes watering an area.

The recommended sprinkler run time for this is 13-16 minutes, with a reduced run time of 10 minutes if you are trying to conserve water. The typical hourly watering rate for pop up sprinklers is 35-45 mm.

Rotary sprinklers

Rotary sprinklers are ideal for exposed lawns and garden areas because of their rotational streams. This kind of sprinkler system is also relatively easy to fix, as you can visibly see if there would be any blockage. The recommended sprinkler run time for rotary sprinklers is 40-60 minutes, with a reduced run time of 30-40 minutes for those trying to conserve water. The typical watering rate per hour is 10-15 mm.

rotating lawn sprinklers

Gear Drive Rotator

Gear drive rotators release a single slow stream of water that moves in an arch that covers large spaces, making them ideal for large home gardens and lawns. The stream released is around 6-11 metres. Note that this sprinkler system requires a 100% overlap to provide even coverage. This sprinkler system requires high pressure. The typical hourly watering rate is 10-20 mm, with a recommended run time of 30-40 minutes. If you are trying to reduce water use, then this can be reduced to 25-30 minutes.

Dripline sprinklers

Located under lawns and garden beds, drip line sprinklers provide water to the area which needs it most: the root system. Drip line sprinklers are perfect for lawns and gardens in warmer climates. As drip line sprinklers are a little more complicated, they should be installed by professional irrigators as well. The typical watering rate for drip line sprinklers is 15-20 mm, with a recommended run time of 30-40 minutes. However, you may reduce this to 20-30 minutes for conserved water usage.

Why You Should Take Extra Care When Watering Your Lawn in Summer

Your lawn is more delicate than you might think, especially during summer. While lawns endure high foot traffic, they require careful attention in the warmer months. Since your lawn can’t voice its needs, let’s explore the benefits of proper watering during summer.

Ensures Lushness and Vibrant Colour
A well-watered lawn boasts a glossy vibrancy, indicating deep hydration. Regular watering, in tandem with maintenance and fertilisation, is essential for keeping your turf lush and green throughout the growing season.

Prevents Dehydration
Summer’s heat intensifies the need for precise watering. Different grass types have specific watering needs, and adhering to these prevents dehydration and promotes healthy growth, ensuring your lawn thrives even in extreme temperatures.

Reduces Disease Risk
Contrary to popular belief, overwatering harms more than it helps, potentially leading to diseases by weakening the lawn’s natural defences. A balanced approach, possibly aided by a wetting agent or an efficient irrigation system, is crucial to prevent overwatering and protect your lawn’s health.

Conserves Water
Being precise with your lawn’s watering schedule during summer not only maintains its health but also conserves water. By optimising water use, you help reduce overall consumption, benefiting both your lawn and the environment.

For those feeling overwhelmed by the nuances of summer lawn care as well as all the other seasons, professional services from Green Oasis offer the expertise to ensure your lawn receives the right amount of care and water, safeguarding its beauty and your peace of mind.

Watering Your Lawn

Optimising your sprinkler systems for watering your lawn is important to make sure that your lawns remain healthy and green all throughout the seasons. Check out your sprinkler systems before anything else, and proceed as needed. If you have problems or if you’re having some difficulty with your sprinkler systems, Green Oasis Lawn and Reticulation can help you with your reticulation problems. Contact us to get some clarifications and more lawn care tips!

 

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