Cernik is a municipality and a small rural town in the County of Brodsko Posavina. It is the upland region of Slavonia below Psunj. Despite its industrial history, people today are predominatly engaged in agricultural activities, mostly fruit growing and viticulture. Like most rural places in Croatia, Cerik faces the departure of young families. The aim of this study is to determine which species were traditionally grown on Cernik gardens, to conduct an inventory of the horicultural flora of gardens in the area of Cernik to assess their sustainability and to propose measures for the conservation and echancement of biodiversity. Interviewing the older populatin it was revealed that people in the past mostly lived from agriculture, there werw aslo craft occupations. The gardens were enclosed by wooden plots or fences containing various vegetables. In addition to vegetables, other horicultural plants such as flowering species, shrubs and trees also grew. By interviewing we learn lots of different local names of different species of plants. In this study, we inventoried 30 gardens of Cernik and it was found 191 species from 77 families. The most common are the family Rosaceae and Asteraceae. The most common species are: Prunus persica, Hosta sp., Iris sp., Malus domestica, Rosa sp., and Syringa vulgaris.