In the design of parks, natural (topography, vegetation, microclimate, etc.) and physical (current pedestrian and vehicle traffic, etc.) features of an area should be primarily evaluated in a careful way. The design must be compatible with the characteristics and limitations of space. Natural taxa and green areas that will bring nature into the city with all the possible variety should be included in the design. While urban parks balance the deteriorating relation between the human and nature, they also provide physical and aesthetic value to the urban space. Planting in parks and plant species used are important in terms of natural vegetation and different composition types they reveal in addition to their diversity. In this study, parks in the city of Trabzon (with the area size above 1 ha) and plant compositions in these parks (in terms of plants' sizes), plant species and natural rates were assessed. In the study conducted for this purpose, a total of 103 different plant taxa were determined in five different parks. The diversity revealed by these plants, their being native or exotic and how they are used in planting design in terms of size were determined. In this study, which was performed in parks, the errow which was determined at most in planting compositions evaluated in terms of size has become not paying attention to planting distances.