How to Design Rain Garden as Storm-Runoff Practical Solutions

Rain garden or rainwater garden is a garden or park in the form of a basin that collects rainwater and runoff from stormwater that is designed to capture and filter the water runoff with intermediary media in the form of plants, slowing down stormwater when it is sent, giving stormwater more time to be absorbed and filtered slowly into the ground.

A Rain Garden Next To The House Is The Best Solution

Stormwater is rainwater that is not absorbed by the ground and then flows on roads, roof tiles, and so on. This water runoff is dangerous because it contains pollutants, including heavy metals, bacteria, oil from vehicle oil spills, solids, and nutrients. The rain garden is ideally located on the lower ground and close to the source of runoff.Rain garden is built around the area of ​​the house. This type of garden can help prevent erosion, direct rainwater toward the aquifier, and can help plants and microbes work together to break down pollutants so that heavy metals stick to the leaves and stems of plants, not to the ground.

In the rainy season like now, building a rain garden next to the house is the best solution. Not only to prevent flooding and pollution from stormwater, this park can also enhance your homes.

Rainwater can be a big problem when it rains and storms. Water runoff suddenly seeps from the roof to break through the driveway, which certainly contains a lot of oil and dangerous pollutants.

Rainwater management in a city landscape often cannot cope with flooding, and ultimately causes standing water. The United States Environmental Protection Agency (US EPA) estimates that as much as 70 percent of pollution in rivers and lakes is brought by rainwater.

To overcome this, you can design a rain garden in the yard of the house. “Basically, this park was created to slow down the flow of rainwater during a hurricane,” said Jane Billinghurst, Master Gardener of the Year for 2012 from Washington State University Extension as quoted by the HGTV Gardens page.

Billinghurst said, rain gardens can help prevent erosion, directing rainwater to local aquifers so that they are not “lost” by storms, can even help plants and microbes work together to break down pollutants so that heavy metals stick to the leaves and stems of plants, not to the ground.

How To Build Rain Garden?

How To Build Rain Garden?

1. The first thing to do is to choose the location of the land

To create a rain garden, the area and location depends on the page you have. For example, you want to measure the area of ​​a roof that will flow into a ditch that leads to a rain garden, as well as the size of each paved area that will contribute to runoff to the park.

If your soil is sandy, the park area is around 20-30 percent of the area that has water. However, if you have clay or mud, ideally this rainwater park is built 60 percent of the drainage area.

However, don’t let these numbers intimidate you because no matter how extensive the rain garden is, it’s certainly better than nothing. The ideal location for creating a rain garden is a natural overdraft area.

2. Pipe Water to Rain Garden

You can also pipe water from gutters or downspouts to the rain garden. The soil in the garden must be well drained, so that the water does not stay there for more than two days.

3. Make Special Soil

The soil in the rain garden is specially made, which is a mixture of 50-60 percent sand, 20-30 percent topsoil, and 20-30 percent is highly recommended to use compost. You can add this mixture to the soil to a depth of two meters before placing the plants.

4. Choosing plants is not easy

Plants in the garden rainwater should be chosen “endure” after a long time being in the water so that the local plants and wildflowers are a good choice because it is easy to adapt. You may already know these plants such as ferns, ornamental grasses, puzzles, irises, milkweed, daisies and black-eyed susan flowers.

The idea is to create a natural planting that is easy to care for (does not require fertilizer) and can welcome butterflies, bees, and other creatures.

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