Skip to main content

What is a rain garden and why you should build one

If you dread thunderstorms or rain showers because they leave your yard sopping wet for days, a rain garden might be the solution for you. As gardeners, we’re always looking for ways to treat and fit things within our homes naturally. A rain garden can solve many problems homeowners have with a natural and beautiful solution. 

cone flowers for rain garden

What is a rain garden?

Rain gardens are planted in a depressed area, usually formed on a natural slope in landscaping, and contain moisture-loving, native plants. These gardens capture rain from roofs, parking lots, driveways, and streets. It takes this water that would otherwise fill and destroy culverts, pods, streams, and other natural water systems and allows it to soak slowly and naturally into the soil. Rain gardens are an affordable and accessible solution for residential storm runoff issues. 

Rain showers may not seem like they’re producing a lot of water until you do the math. For example, an inch of rain on 1,000 square feet is 623 gallons of water. That’s a lot of water! Imagine 623 gallons of milk being dumped down the drain. Instead of letting that natural resource go to waste, catch the water with a rain garden and grow something beautiful!

The benefits of a rain garden

In areas where neighborhoods and cities are inundated with parking lots, driveways, and roofs, rainwater can cause huge problems for both structures and  surrounding natural waters. When rainwater rushes down gutters and into culverts, the water table gets filled with contaminants that otherwise would naturally filter out through the soil. Rain gardens take the run off and allow it to slowly soak into the ground. This process filters out contaminants the water picked up along the way and recharges the groundwater. When done correctly, it can reduce the amount of flooding during heavy storms. 

In addition, it’s recommended that rain gardens be filled with native plants. These plants are already accustomed to the area and need less maintenance. Plus, since the gardens are naturally watered, they ultimately save on water usage and add a beautiful area to your yard. Save time, save money, and save the environment? It sounds like a win-win-win situation!

The use of native plants in rain gardens is crucial to why they are so good for the ecosystem around your home. The native plants invite essential pollinators including bees and butterflies. The chemicals and sprays used today are exterminating an alarming amount of pollinators that are vital to the environment. Rain gardens can be a sanctuary for these amazing insects. These gardens also create an excellent space for birds to find bedding for nests and food from beneficial insects. 

If your yard has an issue with standing water that attracts mosquito breeding, rain gardens will help combat that problem, too. 

native aster

Which native plants should you grow?

Depending on which plant hardiness zone you’re in, your choice of native plants is almost endless. Most designs incorporate perennial flowering plants and plants with more foliage. This mixture creates a balanced feel to the garden. 

Although different plants can be used in various zones, a few are used in almost all rain gardens across the U.S. 

  • Aster is a bushy flowering plant with little purple flowers. 
  • Daylilies come in many colors and are bright and eye-catching.
  • Irises have uniquely shaped purple and white blooms. 
  • Sedum is a large group of flowering plants that are hardy and grow quickly.
  • Coneflowers have daisy-like flowers with large cone-shaped centers. 
  • Artemisia is also known as mugworts; these plants have beautiful bright green foliage. 
  • Sedge is a group of plants that grow like large grasses and come in various shades of green. 

No matter the type of flowers you choose to put in your rain garden, your home, local waterways, and native plants and insects will thank you. And you’ll do a happy dance when you see your water bill!

Editors' Recommendations

Rebecca Wolken
Former Digital Trends Contributor
Rebecca's has written for Bob Villa and a Cincinnati based remodeling company. When she's not writing about home remodeling…
Can you grow a bird of paradise from a cutting? Here’s what you need to know to grow your dream plant
Tips and tricks for successfully propagating a bird of paradise plant
Bird of paradise plant

Whether they're found in their natural habitats in the wild or as the centerpiece in an indoor garden, bird of paradise plants are eye-catching and perfect for adding some color and tropical flair to your home. This plant is native to South Africa and is well-known for its lush foliage and attractive tropical blooms with vividly colored flowers. The plant gets its name from the stunning flower's resemblance to a colorful bird in flight.

With how stunning this plant is, it's no wonder that so many gardeners want to grow their own. However, growing one from seed can take a long time, and mature plants can be expensive if you want more than one. For most plants like this, propagation is the fastest and most cost effective way of adding them to your garden. So can you grow a bird of paradise from a cutting? Yes, and this guide will tell you how!

Read more
5 November garden plants you should consider growing
Here are the best plants to get started for late fall
Close-up of daffodils in sunlight

November is the end of autumn and the beginning of winter, so it isn’t typically a time when people think about working in their gardens. However, November can still be a productive gardening month! We’ve prepared a list of five plants that you can grow in your garden this November — we’ll even give you tips and tricks for growing them, what climates they grow best in, and when you can expect to see results. If you aren’t planning on planting a cover crop this winter, try out one of these November garden plants.

Daffodils are spring-blooming flowers, but they’re often planted in the fall. Daffodil bulbs should be planted two or three weeks before the ground freezes, so keep an eye on your local weather for the best results. In mild climates, daffodils can be planted as late as the end of November, while those in cooler climates may need to plant them in September or October.

Read more
Are pothos plants toxic? What you need to know
Tips on pothos plants and having them near kids and pets
golden pothos plant

If you have a pet or small child, you know that their curiosity cans sometimes get them into trouble. Whether it's a cat that can't stop knocking cups off countertops to see what happens or a kid who eats potting soil, it's a disaster waiting to happen. If all your plants are safe and nontoxic, then this might just be frustrating or mildly upsetting.

However, not all plants are safe for pets or children to play with. This is especially true if your pet or child likes to chew on plants. Pothos is a popular houseplant for it's resiliency, and it can be found in many homes. So let's find out if pothos could be harmful for our curious companions.

Read more