Pliger, Katrin. 2015. Ethnbotanical Studies of rural Homegardens in Sillian (Lienz District) in the years 1999 and 2013, Master Thesis on the University of Natural Resources and Life Science Vienna (Austria); Homegardens are part of the traditional land use on farms in Eastern Tyrol (Lienz District). Homegardens provide food, medical plants, ornamental plants and plants for customs. Until now, homegardens where not surveyed repeatedly to document their development. In the years 1997 and 1998 196 homegardens of Eastern Tyrol (Lienz District) where investigated already in detail for a dissertation. Beside the ethnobotanical research, position, appearance and management practices where assessed. Seventeen homegardens were surveyed again 15 years later, in 2013. Through the implementation of the same methods as applied in the first study, changes in the above mentioned categories could be assessed. Garden manager where asked also about reasons of changes. Changes were asserted on position, management methods, plant composition, utilization, preservation and reproduction of species. Absolute number of species increased from 232 to 251. Regarding the ratio of useful plants to ornamental plants, a shift in ten from seventeen gardens toward useful plants was observed. In five homegardens, mentioned changes where mostly due to the replacement of the garden manager. Cultivation of homegardens is entrenched in the region. However, continued cultivation of homegardens is not secured in every case. A repeated survey in 15 or 20 years could show plenty about the development of homegardens and its linked topics e.g. reproduction or conservation oft plant species.