Hydration system for an indoor garden center

A gardening appliance includes a liner positioned within a cabinet and defining a grow chamber, a grow tower rotatably mounted within the liner and defining a root chamber, a hydration system comprising a water supply tank for storing water, a supply conduit fluidly coupling the water supply tank to a discharge nozzle, a supply pump for selectively urging the water through the discharge nozzle and a water level sensor operably coupled to the water supply tank. A controller obtains a water level of the water in the water supply tank using the water level sensor, determines a conservative water supply schedule based at least in part on the water level, and operates the hydration system to provide the water in accordance with the conservative water supply schedule, the conservative water supply schedule providing the water at a slower average hydration rate relative to the standard water supply schedule.