Based on the analysis of several morphological features and phenotype characteristics of seedlings in the juvenile test with 10 half-sib lines of Moesian beech (Fagus moesiaca (Maly) Czeczott), this paper gives the guidelines for further breeding and production of planting material for urban coenoses and the establishment of special purpose plantations of this species. The comparative analysis enabled the identification of the extreme planting material for further breeding programs aiming at dwarf varieties the selection of seedlings for tree rows, as well as the selection of planting material of special phenotype characteristics, which can be used as the initial material for the synthesis of the new varieties of Moesian beech.