Seasonal color changes make the urban space different. The rhythm of changing landscape paintings contributes to the harmonious perception of surrounding landscapes and their individual objects. Color plays a very important role in the perception and formation of any object-spatial environment, because during contemplation affects the physiological state of a person, his mood, emotions, etc. Thus, during the study it was established that seasonal color changes cause the accelerated passage of the main phenophase by plants, shortens their duration, decreases the vegetative period and, as a consequence, accelerates the aging and death of plants. One of the main factors that determine these anthropogenic processes. The study of the dynamics of seasonal development of plants is necessary to assess the aesthetic and sanitary-hygienic properties of trees throughout the year and as a result of the creation of sanitary protection strips around transport routes and industrial facilities.