Greenhouse management system, greenhouse management device, greenhouse management method, and program

A greenhouse management system for managing a greenhouse in which a plant is grown, the system comprising:

• an image display;
• a storage configured to store information being at least two of event information, environmental information, or growth information, the event information being information about an event affecting growth of the plant in the greenhouse, the environmental information including a physical quantity associated with an environment of the greenhouse, the growth information being information about growth of the plant in the greenhouse;
• a greenhouse analysis chart generator configured to generate, based on the information stored in the storage, a greenhouse analysis chart showing, simultaneously on a common time axis, at least two of an event information graph, an environmental information graph, or a growth information graph,
• the event information graph including an axis indicating at least an occurrence or non-occurrence of the event and the time axis,
• the environmental information graph including an axis indicating the physical quantity associated with the environment of the greenhouse and the time axis,
• the growth information graph including an axis indicating a growth degree of the plant and the time axis;
• and
• a greenhouse operation comparison assistance configured to cause the image display to simultaneously display a plurality of the greenhouse analysis charts being different from one another.