Each plant and its mutation have a chance to produce a Great version of itself, which has a higher shipping price. The elevation of the ground proved to be one of the most important features for crop-growing not only because some mutations require it to be grown at specific altitude, but it also determines the growth rate. For the sake of clarity, this article will abbreviate some of phrases regarding the ground elevation that the crops are grown on. 'HE' stands for House elevation, which is the same height as the farm house, and 'WL' means Water level, which is the same level as the river floor. For example, HE -3 is three levels below the farm house, and WL +2 is two above water level.