For the landscape architect, trees are a key element in creating structure and atmosphere within a design. They serve as important focal points and help to create cohesion with the surrounding planting, or can be used to screen out unsightly elements. To achieve the desired end result in a design, a number of factors must be taken into account, such as the designer’s vision, the growing conditions and the function of the tree. Trees are also important for the users of the space. By applying the planting correctly, you can allow users to discover the space in various ways, and trees with a dense canopy create privacy. In addition to aesthetic considerations, there is often a need for greening, particularly in urban areas. Here, the functions of trees are essential, such as cooling the environment or capturing particulate matter. In this section of the knowledge centre, we explain more about designing with trees and the importance of correct application.