Hedges play an important role to the micro-climate, particularly as shelter from the wind as well as sun protection, which both dry out the soil. Also hedges help in controlling water regulation and protection, by minimizing soil erosion and retaining rain water. Hedge habitat plays an important role in maintaining balance in nature. The environmental value of hedges is determined by the length of a hedge, mutual connection and density in the landscape. Hedges function as ecological transport routes for fauna and flora in a landscape. An ideal hedge consists of three layers: trees, with underneath bushes that function as a kind of mantle and grasses and herbs as ground cover. Each layer has specific ecological adjustments with regard to growth and establishment.