Berms are essentially mounds of soil that are either naturally occurring or man-made. They are very useful if properly designed and installed in creating landscape interest, directing drainage, screening views and enhancing plantings. The photo above is obviously an extreme example but it shows the interest landforms can provide. A proper landscape design should assess whether berming is beneficial and to what degree berms should be incorporated into the landscape. It is critical that, if man-made, they flow smoothly and naturally with the surrounding landform and effectively accomplish the desired screening, drainage control and plant display.