A growth information management device and the like with which growth information acquired from a plurality of farm fields can be easily divided or processed in other like manners.A growth information management device 10 generates boundary information on farm field information based on measured growth information 24 that is plant growth information that has been measured, generates independent farm field information 53 sectionalized based on the boundary information, and converts the measured growth information corresponding to the independent farm field information into growth level information 45 that is information indicating a level of growth of a plant and displays the growth level information on a display unit 16.
