Rain Garden Design
Rain gardens designs are very helpful for our environment and are a very useful and natural way to help protect our water resources. The central idea of a rain garden is to use to native plants and soil to manage the runoff after a good rain or heavy storm.
When creating a design plan for your rain garden using loose absorbent soil to soak up pollutants in the shape of a bowl or depth consistent shape that is also shallow is your best way of executing the desired effect.
The plants will help with the absorption while again the sand or soil with help absorb the pollutants.
When creating your rain garden there are many things to consider these are those things:
• Figure out what kind of soil you have within your gardening space you wish to use. (Clay, sand, etc.)
• Find out what hard surfaces you have that will produce the rain water drain off for your garden. Hard surfaces include your roof, driveways, sidewalks, and patios. Consider only the parts that will drain into your garden, because different parts of your roof drain to different drain spouts.
• Multiply the width of the hard surfaces you have chosen by the length of said hard surface to get the square footage. Add all the numbers from each surface together to get the total square footage of the drain area.
When using different types of soil there are different measures to be taken such as:
• Sandy Soil – your garden should be 20 – 30% of the drain area. For example if your roof and driveway measure 1200 ft your rain garden should be 240 to 360. (10 ft by 24 ft)
• Clay Soil- your garden should be 60% of the drain area. For example if your roof or drive way measure 1200 ft your rain garden should be 720 ft. (15 ft by 48 ft)
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