What Is A Rain Garden And How Does It Work
A rain garden should have an area about 20% the size of the roof, patio, or pavement area draining into it.
What is a rain garden and how does it work. The rain garden will need to work in terms of levels, with the overflow point being higher than the receiving drain. Rain gardens are gardens with native perennials and shrubs planted in a depressed area of land and are designed to soak in and store stormwater runoff from roofs, driveways, lawns, etc. The rain garden fills with a few inches of water after a storm and the water slowly filters into the ground rather than running off to a storm drain.
Rain gardens rely on plants and natural or engineered soil medium to retain stormwater and increase the lag time of infiltration, while remediating and fi Regardless of the size, big or small, each rain garden can make an impact. Rain gardens are designed landscape sites that reduce the flow rate, total quantity, and pollutant load of runoff from impervious urban areas like roofs, driveways, walkways, parking lots, and compacted lawn areas.
These gardens are strategically placed to intercept pollutant laden stormwater runoff until it can be fully absorbed 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. A rain garden is not a water garden.
How does a rain garden work? By planting a rain garden, you can help maintain the natural water cycle while protecting local rivers, lakes, fish and drinking water sources. They are, as the name suggests, a chain of rings or other shapes strung together to channel rain from the top of the house down into a rain barrel or decorative basin.
Rain gardens are an easy and effective tool that we can use to help reduce stormwater runoff from residential properties. A rain garden is a system that collects water from paving, hard surfaces, roofs, and puts it through a filtering mechanism that removes nutrients and pollutants. Rain gardens have a relatively simple design.
The runoff temporarily ponds in the garden and seeps into the soil over a day or two. Sandy soils drain well, while clay soils may become waterlogged. Reduce the potential for flooding, drainage problems and stream bank erosion.