Thus，a rain garden keeps the water，allowing it to be used as needed by plants in the rain garden，rather than flowing immediately into nearby streams and going unused.The water will soak slowly into the ground within a day or two.This creates an advantage that the rain garden does not allow mosquitoes to breed.This is a simple，attractive，and ecofriendly “green” way to treat storm water.

　　What’s more，planting a rain garden helps reduce pollution and improve the environment.Without using expensive machinery and chemicals，rain gardens remove harmful chemicals in the rainwater and cut down on the amount of pollution reaching streams and rivers by up to 30%.

　　Native plants are recommended for rain gardens because they are more used to the local climate，soil，and water conditions.They may attract local wildlife such as native birds.Water your rain garden immediately after planting and once a week，unless you have had at least an inch of rain during the week.Once native plants establish the necessary root system，they will require little care.

　　Often，local governments and private businesses develop large rain gardens in their yards and in public parks as a way to improve the environment and solve flooding problems.However，you don’t need to be a professionally environmental engineer to create a rain garden.As long as you’re eco­conscious homeowners，you can help the environment by building smaller rain gardens in your yards.

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