In this work, we continue to explore the time inside the plant organism. The beginning of the study of time inside the plant organism is given in [1]. It is shown that inside the plant organism biological time has the character of a vector time field. A dynamic system of two differential equations is constructed, corresponding to this field and corresponding to the whole plant organism (for sunflower). It is shown that such a vector time field divides the plant organism into cellular and subcellular structures. Such a time field has been studied and verified on the basis of data from agrometeorological yearbooks. The calculations of the time axis are made and the phase portrait of the field is obtained.