Aim: To determine the general phenology of Japanese plum (Prunus salicina) cv. Methley grafted on Myrobolan plum (Prunus cerasifera), cultivated in high altitudes with temperate climate.Design/methodology/approach: Through a sampling by quotas, twenty trees with remarkable health and integral general structure were selected. Daily minimum temperature (Tmin) and maximum temperature (Tmax) of the air, and hourly temperatures during endodormancy were recorder. Moisture content and temperature (minimum and maximum) of the soil were measured daily. The radical accumulation was monitored and the dates of beginning and end of the phenological phases were determined. Chilling Units (UF) were quantified during endodormancy.Results: The highest radical accumulation occurred during dormancy, and the lowest during flowering. During flowering, the highest growth rate of vegetative flows initiated, maintaining, simultaneously, growth and development of fruits. The foliar area was greater during the growth and development of fruits. There was an ecodormancy previous to endodormancy, and an accumulation of 235.8 Chilling Units were enough to reestablish the growth through bud swelling and sprouting.Study limitations/implications: Although the Japanese plum tree achieves a percentage of fruit mooring of 31% (high percentage), in this study the fruit mooring percentage was 10.25%, even with the largest leaf area.Findings/conclusions: Leaf area varied during phenological phases, and there was permanent radical accumulation.