The following variables were analyzed at different soil depths, during one phenological cycle: root density, root dry matter percentage, root accumulation, both growing and absorbing roots, and intermediate and conducting roots. The aim of the study was to determine the root phenology of Myrobalan plum tree grafted with Methley Japanese plum. A quota sampling was used to select five trees from the experimental orchard. Within the volume of soil adjacent to tree’s roots, 330 cm3 of soil were sampled and collected each month, in order to identify root type, quantify their fresh and dry weight, and carry out statistical analyses. The highest densities of growing and absorbing roots were observed at 0-25 cm soil depth during the phenological cycle. A higher density of intermediate and conducting roots was recorded at 25-50 cm soil depth, just at the beginning of the ecodormancy. The highest root accumulation was recorded when moisture and soil temperature were not optimal but the cultivar did not record a significant vegetative and reproductive growth.