Sustainable drainage systems to complete the managing and treating surface water runoff in the parking. This kind of gardens contributes to preserve the habitat value and diversity for local ecological communities; and overall sustainability once established. Native and adapted plants are installed into the rain gardens because they are more tolerant of local climate, soil, and water conditions; and they have deep and variable root systems for enhanced water infiltration and drought tolerance.
This NBS can be easily built in areas like driveways, walkways, parking lots, compacted lawn areas, roofs, and residential gardens. Often the required location and storage capacity of the garden must be determined first.
Rain gardens get the recovery of the investment in about 5 years.