Agricultural Extension Service, South Dakota State College
In selecting trees or shrubs for the home grounds, public grounds or the farmstead two questions come to mind. ( 1 ) Is the plant suitable for the purpose intended? ( 2 ) Is the plant adapted to the location? Plants which can tolerate extremely low temperatures and other adverse conditions are referred to as being hardy. The ability of a plant to endure these conditions is due to the genetic make-up of the plant, its life processes, and the environmental conditions in which it is growing. The genetic make-up of the plant governs its hereditary characteristics which are passed from one generation to the next through reproduction. Environmental conditions relate to the plant's surroundings. Growth habits can often be altered or modified by varying cultural practices which affect the plant's environment. This in turn would have some influence on the plant's hardiness.
Service, Agricultural Extension, "Ornamental Trees and Shrubs for Landscape Plantings in South Dakota" (1961). SDSU Extension Circulars. 606.