Plants have both functional and aesthetic roles in landscape design. The aesthetic properties of plants include color. Color has visual and psychological effects on human beings. The effect of color varies depending on different growth periods of foliation, florescence, fruit bearing, and falling times. Color changes of deciduous plants in autumn, have a significant place in planting design. In the study, the autumn color change of Platanus orientalis L. (oriental plane) and Acer negundo L. (ashleaf maple) was monitored under different climatic conditions in the province of Hatay, located in the Mediterranean Region and in the province of Kastamonu, located in the Black Sea Region. It was suggested in the results of the examination performed that for both plant types, yellow-green and red-brown, color tones, and brightness values were different from each other. Color change in leaves may vary for reasons including the position of plants, their habitats, and climatic properties.
