Park and street trees have nowadays very important role for quality of life incities. Maintenance and care is very important for trees to reach adult stage and also stay healthy and safe. The aim of this thesis was to make an inventory of tree damages and evaluation of health condition of the trees in Viterbo's park Pratogiardino in Italy. The result were compared to similar research already made in Slovenia (Šuligoj, 2009). During the research there were 354 trees growing, 302 deciduous and 52 conifers, 21 different tree species. Tree's species were determined and its location was put on the map of the park. Evaluation of the condition of the roots, base, trunk, ecrown and general health status was made using VTA method. 65 % of trees were damaged, 24 % were severely damaged. 88 % of young trees were in good health condition and that is very good prospect for the future.