Observations of aquatic plants and marshland plants were conducted in an artificially formed fen, within the old basin of Skawinka river, in a municipal park located in the southwest part of Skawina town. The area selected for the study was determined based on the location of plant stands, representative for the whole body of water. Based on the analysis of the locations where the aquatic and marshland plants occurred, observations were made of selected species. When making the selection, we were guided by the criterion of the potential suitability of using these plants in garden plantings, planned subsequently. We have marked the locations of particular plant communities, and then applied them on the situational and altitude map, in the scale of 1 : 500 [Czarnota 1997], which is the basis for the design and planting in the area.