Landscape drainage is used to divert water from the area, through grading the soil, implementing trenches and piping, or by using swales to create natural pathways for water to travel. When soil drainage is poor due to rocky or clay-like soil, options such as dry wells are used.
Drainage is important in areas that receive more rainfall, as too much moisture stunts plant growth for many varieties that do not specifically thrive in water environments. Water makes it difficult for plants to take in needed gases through their roots and can contribute to plant damage and death. The diversion of rainfall can be used to enhance a yard by creating water gardens or gravel pathways and can provide habitat for butterflies and birds.