What Is A Rain Garden And How Does It Work? | Eco-friendly landscaping

If you live in an area that is prone to heavy rainfalls or storms like Brisbane, or if a particular area in your yard is often waterlogged, a rain garden is a fantastic way of bringing in more eco-friendly landscaping whilst managing excess water.

A rain garden is a depressed area that collects rainwater during storms or heavy rainfall and then filters it through plants and soil before the water is released. It’s an easy way to make your gardening more sustainable and increase your local wildlife habitat!

Learn the benefits and basics of rain gardens below!

What Is A Rain Garden?

A rain garden is a landscaping feature that’s used to collect and filter rainwater. Rain gardens are excellent at managing heavy rain runoff from big storms. Water runoff often contains chemicals, sediment, and other pollutants that can be harmful to our environment and water quality. Rain gardens absorb this runoff water and then act as a filter before it is released so it can be used safely again by plants and wildlife!

The best way to use your rain garden is by planting native plants that are well-suited to the local climate where you live. These plants will help provide food for pollinators like bees and butterflies while also soaking up excess water.  This prevents water from running straight into storm drains or nearby creeks.

How Does A Rain Garden Work?

A rain garden is a depressed area in your yard that collects and holds water from your driveway, roof, and eaves. These gardens are constructed with a series of landscaping layers:

  • First, a drainage layer of rocks, blue metal or gravel allows for water to flow through the garden
  • Next, a mixed organic layer of grainy sand and soil where the native plants grow
  • Plant your native plants of choice then top with a layer of blue metal, stones or gravel

These layers create a rain garden that collects rainwater runoff and allow it to soak into the ground instead of running off into storm drains or creeks. As this water soaks into the soil, it helps replenish groundwater levels. The plants within the garden help filter out pollutants like oil or pesticides that may be in our stormwater runoff before they are released 12-18 hours later.

Think Native!

What’s important to remember about a rain garden is that the plants themselves are equally as vital as their location and the layers. The roots of these plants will absorb water, which is what they need to grow and thrive in your backyard space.

Ensure the plants you select are native to your area and are suitable for heavy rainfall.

Soil Is The Key To Success 

Top-quality soil is the key to the success of your eco-friendly rain garden. It should be well-drained, fertile and pH-balanced. The easiest way to amend your soil is by adding compost on top of any existing dirt in your yard or garden bed. Compost adds nutrients while also increasing drainage and helping keep weeds at bay!

A Rain Garden Is A Perfect Addition To Your Eco-Friendly Landscaping

A rain garden is an easy way to create more eco-friendly landscaping in your yard by helping to recycle water and prevent flooding from heavy rains. They can be installed in any size of yard, making them accessible to all homeowners and renters alike.

The benefits are plenty as they’re easy to install; they don’t require much maintenance; and they attract birds and butterflies.

We hope you now have a better understanding of what a rain garden is and how it can help combat the effects of stormwater runoff. If you’re thinking of starting your own rain garden, please get in touch with us at Brisbane Soils for your gardening supplies needs.


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