A rain garden is a planted depression or a hole that allows from urban areas, like roofs, driveways, walkways, parking lots, and compacted lawn areas, the opportunity to be absorbed. This reduces rain runoff by allowing to soak into the ground (as opposed to flowing into and which causes . They should be designed for specific soils and climates.The purpose of a rain garden is to improve water quality in nearby bodies of water and to ensure that rainwater becomes available for plants as groundwater rather than being sent through stormwater drains straight out to sea. Rain gardens can cut down on the amount of pollution reaching creeks and streams by up to 30%.
Native and adapted plants are recommended for rain gardens because they are more tolerant of one’s local climate, soil, and water conditions; have deep and variable root systems for enhanced water infiltration and drought tolerance; habitat value and diversity for local ecological communities; and overall sustainability once established. There can be trade-offs associated with using native plants, including lack of availability for some species, late spring emergence, short blooming season, and relatively slow establishment. The plants — a selection of edge vegetation, such as and small — take up excess water flowing into the rain garden. Water filters through soil layers before entering the groundwater system. Root systems enhance , maintain or even augment soil permeability, provide moisture redistribution, and sustain diverse microbial populations involved in Also, through the process of , rain garden plants return to the A more wide-ranging definition covers all the possible elements that can be used to capture, channel, divert, and make the most of the natural rain and snow that falls on a property. The whole garden can become a rain garden, and each component of the whole can become a small-scale rain garden in itself.