A Rain Garden receives water from impervious (hard) surfaces such as rooftops, sidewalks, driveways and patios. The shallow depression of the garden holds the water so it can slowly infiltrate back into the soil as the plants, mulch and soil naturally remove pollutants from the runoff.
How is rain garden made?
Rain Garden Details
Create the rain garden by building a berm in a low spot in the yard, then build swales to channel runoff from the gutters and higher parts of the yard. The water is then absorbed into the soil through the network of deep plant roots.
What is a rain garden and how does it work?
A rain garden is a depressed area in the landscape that collects rain water from a roof, driveway or street and allows it to soak into the ground. Planted with grasses and flowering perennials, rain gardens can be a cost effective and beautiful way to reduce runoff from your property.
What do you mean by rain garden?
Rain gardens are shallow, constructed depressions that are planted with deep-rooted native plants and grasses. They are strategically located to capture runoff from hard surfaces such as a driveway, parking area, sidewalk or streets.
How do you make a rain garden for kids?
Rain gardens capture runoff and allow it to seep slowly into the ground.
How to build a rain garden
- Find a suitable location for your garden. …
- Figure out the best size for your rain garden. …
- Plan and then stake out the garden area.
- Dig out the garden area to the desired depth. …
- You’re ready to plant!
Can you plant a garden next to your house?
Don’t build up garden beds around the house without allowing for adequate drainage around the house. Don’t plant trees or large shrubs next to or near the house. … Your garden beds should be graded away from the house, with surface drains provided to take excess water away from the building.
Do rain gardens attract mosquitoes?
Will mosquitoes like rain gardens too? No. Mosquitoes require at least seven days of standing water to complete their cycle before. A properly constructed rain garden should drain within twenty-four hours after a rain event.
How effective are rain gardens?
All About Rain Gardens
Rain gardens are effective in removing up to 90% of nutrients and chemicals and up to 80% of sediments from the rainwater runoff. Compared to a conventional lawn, rain gardens allow for 30% more water to soak into the ground.
What are the benefits of having a rain garden?
More Benefits of rain gardens …
- Reduce mosquito breeding.
- Filter runoff pollution.
- Reduce garden maintenance.
- Increase beneficial insects that eliminate pest insects.
- Recharge local groundwater.
- Improve water quality.
- Protect rivers and streams.
- Reduce potential of home flooding.
What characteristics are necessary for a plant to thrive in a rain garden?
Criteria for Selecting Rain Garden Species
Plants that need full sun need at least 6 to 8 hours of direct sun during the growing season; plants that require shade cannot tolerate more that 3 hours of direct sun. The hours and angle of sunlight change with the seasons, too.
What is the difference between a bioswale and a rain garden?
The key difference between the two is that bioswales are designed more for cleaning and processing water as well as redirecting it (usually away from a road or lot), while rain gardens are more strictly designed to absorb stormwater, particularly off rooftops and walkways.
Are rain gardens expensive?
The cost associated with installing residential rain gardens average about three to four dollars per square foot, depending on soil conditions and the density and types of plants used in the installation. Commercial, industrial and institutional site costs can range between ten to forty dollars per square foot.
Are there any famous rain gardens?
Patagonia has installed bioswales at its headquarters in Ventura, CA. … But the biggest creator of bioswales in the West, and the city that’s giving free native greenery to its citizens and even landscaping it into their rain gardens, is a rainy one: the City of Portland.
What are the important parts of a rain garden?
The rain garden consists of a vegetated or stone ponding area, a mulch layer, a planting soil layer, a sand bed, and a gravel base. The multiple layers work together to filter pollutants from water, allowing it to infiltrate into the groundwater supply uncontaminated.
When should you plant a rain garden?
Although a rain garden can be installed anytime the ground is not frozen, spring and fall are the best times to start your garden. In spring, the soil is easier to dig and the rainy weather means less initial watering.