Why do I need to enter my vegetation type for each zone?

Vegetation is used initially to determine watering minutes. Each vegetation or plant has a different crop coefficient, which is used in determining evapotranspiration. There may be several crop coefficients used for a single crop throughout an irrigation season depending on the crop’s stage of development. The higher the coefficient number, the more water the plant uses.

Cool Season Grass - These grasses grow best when temperatures are between 65-80 degrees F, which is why they do most of their growing in the spring and fall. The most common grasses in this category are Kentucky bluegrass, perennial ryegrass, tall fescue, and fine fescue.
Warm Season Grass - These grasses are originally from sub-tropical regions, which is why they thrive in the hot temperatures of the Southern US. The major grasses in this category are Bermudagrass, centipedegrass, St. Augustinegrass, bahiagrass, and zoysiagrass.
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