How to set up a garden irrigation system

Another summer is on its way and the last thing you want is to see months of gardening effort shrivel in a single heatwave. Miss a watering session or two and vegie patches can collapse, lawns crisp up and some plants can be gone for good. The key is setting yourself up now with a garden irrigation system so your yard is ready to face the heat. And you don’t need to break a sweat to keep plants hydrated. Today’s smart irrigation systems take on the hard work, so you can relax while the garden takes care of itself. Combine them with simple, time-tested methods to minimise water loss and you’ll keep your garden thriving even through the hottest months. 

Read on and discover:

• How tap timers and a drip irrigation system can do the work for you.

• When to use smart irrigation, so you can go on holidays and still have a watered garden. 

• How to lock in moisture using mulch and self-watering pots. 

• Why water tanks can provide a reliable backup during dry spells or water restrictions.

Tip: Always wear the appropriate safety equipment (safety glasses, gloves, ear muffs and a mask, for example) and always follow the instructions for the product or equipment.

How to use tap timers and drip irrigation

If you’ve ever lost track of time with the hose running, you probably know how wasteful hand watering can be. Tap timers can address that issue, giving you a set-and-forget solution. Attach one to your outdoor tap, set the program and let it do the work, advises Stephen Payne, Bunnings national buyer for water systems and irrigation. “We have a new variety of tap timers arriving this summer, both digital and wi-fi enabled,” he says. “They make it easy to water your garden responsibly and efficiently – whether you’re at home or away.” 

For larger yards that have spaces with differing water needs, timers with multiple outlets let you water lawns and garden beds on individual schedules. And here’s a simple saver tip: set watering timings for early mornings or evenings, when evaporation is at its lowest.  

Drip irrigation is another clever option. Rather than spraying water around indiscriminately, drip systems deliver it right to the roots, explains landscaper designer Grant Boyle of Fig Landscapes. “Deep, focused watering at the root zone is always more effective than splashing water over foliage,” he says. Drip systems also achieve a watering consistency that helps plants thrive.  

Tip: Learn how to install sprayers and drip irrigation with this easy guide.

Smart irrigation tech that thinks for you

Wi-fi controllers and moisture sensors can turn watering into a task you don’t need to think about, says Rebecca Kieft of RWC Reliance Worldwide Corporation (suppliers of Holman garden products). “Smart irrigation takes out the guesswork,” she says. “Your garden can respond to weather and soil conditions in real time.” For example, a Holman wi-fi tap timer and hub lets you program different zones via the Holman Home app and skip cycles if it rains. Optional moisture sensors hold off watering if the soil is already damp. Systems like these are a lifesaver for holidays, says Stephen. “It’s always tricky coming home from a summer break to a garden that looks like the Sahara,” he says. “Smart irrigation prevents that.” 

Orientation also plays a role. A north-facing lawn in full sun or a windy spot will dry out faster than shaded beds. “Smart systems allow you to set up separate zones with their own schedules,” says Rebecca. “It’s a sustainable way to water according to your garden’s unique microclimate.”

Other ways to stop your garden drying out

Not everything needs a digital upgrade. Some of the most simple and affordable solutions are hugely effective.

• A thick 50-70mm layer of mulch. Apply it in late winter to help lock in soil moisture and protect roots from summer heat. “We like to add Dynamic Lifter – basically a natural chicken-manure fertiliser – before mulching, and mix in water crystals underneath,” says Grant. This gives plants a nutrient boost and helps the soil hold onto water longer.

• Self-watering pots. Another handy option, especially for balconies or renters. They contain a reservoir that can keep roots hydrated for days, while water crystals mixed into soil slowly release moisture when plants need it. And don’t forget the basics: check hose fittings and taps regularly. Even a small leak can waste hundreds of litres over time.

• Choose plants suited to your climate. Positioning them wisely makes a big difference, too. Group thirsty varieties together, while hardy natives can do with less watering. With the right mix of new gadgets and old-school know-how, you’ll keep your garden green, your water bills down and your weekends free to enjoy – not rescue – your outdoor space.

Storage for days 

A water tank is another great way to help keep your garden healthy and save on bills. You’ll find slimline, modular and even under-deck options that tuck neatly into courtyards and awkward spaces, as well as larger tanks for bigger backyards. A tank can provide a reliable backup during dry spells or water restrictions and can help cut your mains water use year-round. What’s more, stored water can be used for irrigating the garden, topping up the pool, washing the car and, if it’s plumbed in, even running the laundry. It’s a sustainable choice that saves money, too – and with so many sizes and shapes now available, there’s a tank to suit every household.

Tip: Before you plan any rainwater tank installation, check with your local council and water authority and follow all regulations for use.

Keep in mind...

• Always check with your local authority if watering restrictions apply in your area, and adjust timer settings to suit.

• Any plumbing works must be done by a licensed tradie. 

Looking for more ideas to keep your garden healthy?

Read our article on tools for a lush lawn.  
 

Photo credit: Fig Landscapes, Adobe Stock, Gap Photos/Brent Wilson.

*Available to order online or at the Special Orders Desk. Some photographs feature products from suppliers other than Bunnings. Some advertised services and products are not available at some Bunnings stores, but products can be ordered.