A decreasing interest in pastures is one of the reasons for their gradual degradation, resulting in impoverishment of species composition and fast development of less valuable (in terms of grazing) species of herbaceous plants and forests. It results in a drop of a grazing value of sward and in a species decline in naturally valuable areas. Extensive grazing, especially of primitive horse breeds, is a chance to restore their natural value, including biodiversity. Field work was conducted on a pasture in Gronówka Stable and a forester in Zaustowo. A multi-aspect natural valorization was carried out on the basis of species structure and a geographical and historical spectrum. Furthermore, habitat conditions of the area were determined, and an assessment of natural and utilization values of sward was performed. In Zaustowo, Polish primitive horses were grazed, whereas in Granówka, horses of the following breeds: the Holsteiner, the Welsh Pony, the Malopolski, the Oldenburg, the Wielkopolski and the Thoroughbred. It was observed that horse grazing influenced pasture sward in a direct way by selective nibbling of plants. A utility value of sward and a natural value of phytocenoses depends on the habitat conditions of grazing quarters and especially on their moisture condition. Floristic composition of the quarters’ sward located in more moisturized areas, had moderate natural values and a low utility value.