Keeping your garden growing can be a time-consuming chore, especially when it comes to watering. That’s where garden irrigation systems come in handy! 

If you’re a complete beginner when it comes to garden irrigation, we’ve written this complete guide on garden watering systems so first-time irrigators can get started.

What is a garden irrigation system?

A garden irrigation system is a network of pipes, sprinklers, or emitters that deliver water directly to your plants, flower beds and hanging baskets. They can be manual or automatic watering systems that take the guesswork out of watering, ensuring your plants get the right amount of moisture they need to thrive.

How do garden irrigation systems work?

Most systems connect to your outdoor faucet and utilise a timer to control watering schedules. Water travels through the pipes to sprinklers or emitters (tiny drippers that deliver water directly to plant roots), providing targeted hydration to your individual plants.  Don't worry, emitters are much simpler than they sound – they're basically little dribble heads!

Is garden irrigation worth it?

So is a garden irrigation system really worth it? Maybe you’re tempted to stick with your watering can or garden hose? Before you do - let’s just take a look at some of the benefits:

  • It Saves Time: Set it and forget it! Automatic systems free you from daily watering routines.
  • It Saves Water: Targeted delivery minimises water waste compared to traditional methods like sprinklers.
  • It Promotes Plant Health: Consistent watering prevents underwatering and overwatering, both detrimental to plants.
  • It’s More Convenient: Water your garden even when you're away on vacation!

How to Install a Garden Irrigation System (For Beginners!)

Now, there are many irrigation system types to choose from. But for beginners, we recommend focusing on drip line irrigation. Drip line irrigation is the easiest to install, uses less water and is perfect for most gardens. 

Here's a step-by-step guide to get you started:

Step 1:Plan Your Layout

Sketch your garden and mark the locations of your plants and the water source you’re planning to use and the size of your garden.

Step 2: Choose a Drip Irrigation System

When selecting a drip irrigation system, look for kits that are specifically designed for beginners. They typically come with all the necessary parts, including drip pipes, emitters, connectors and a water timer.

Step 3: Purchase Your Kit

Once you’ve found the right drip irrigation kit, it’s time to make the purchase. Prices will vary depending on the size of your garden, but most starter kits are quite affordable.

Step 4: Install the System

Most drip irrigation kits come with detailed instructions. These will typically involve laying pipes along your garden beds, attaching emitters near plant bases, and connecting everything to your water source. Once this is set up correctly, you’ll achieve water flow to all of your plants. 

Step 5: Program the Timer (if you have one)

Set watering schedules based on plant needs and weather conditions. Most timers allow you to customise watering duration and frequency so you can water your plants efficiently.

Choosing the Right System for Your Needs

We have chosen to focus on drip irrigation for its ease of use, but there are other common options available.

Sprinkler Systems: Cover a much larger area than drip irrigation. Drip systems typically focus on watering individual plants or rows, while sprinklers can cast water over large areas. This makes them ideal for efficiently watering large lawns or expansive garden areas. One of the obvious drawbacks though, is water waste.

Soaker Hoses: These porous hoses slowly release water along their entire length, making them perfect for watering raised beds or long rows of vegetables. Soaker hoses are great if you want a low-maintenance option that targets plant roots directly.

Do I Need An Irrigation Water Pump?

An irrigation pump is necessary if your water pressure is low or your water source is far from your garden. However, most homes have sufficient water pressure for drip irrigation systems. If you're unsure, consult a local irrigation specialist. Here are some basic garden pump types (you likely won't need to worry about these for a drip system, but it's good to know they exist!):

  • Centrifugal Pumps: These are efficient for high-volume watering needs.
  • Jet Pumps: Suitable for shallow wells and moderate pressure requirements.
  • Submersible Pumps: Live entirely underwater, ideal for deeper wells.

Does an irrigation pump need a pressure tank?

Not for drip irrigation systems! Pressure tanks are typically used with sprinkler systems to maintain consistent pressure.

How to Choose the Right Pump Size (if needed):

Pump size depends on factors like your garden size, desired flow rate, and pressure needs. If you need a pump, consult a specialist or irrigation system guide for specific recommendations.

Additional Tips for Beginner Gardeners:

  • Prepare for winter: Before the cold weather kicks in, drain your irrigation system to prevent damage from freezing. Most kits come with instructions.
  • Troubleshooting: Clogged emitters or leaky pipes are common issues. Your kit's instructions will likely have solutions for these problems.
  • Cost Considerations: Drip irrigation systems are generally affordable, especially starter kits. Expect to pay more for sprinkler systems or if you need a pump.