Abstract: A method of operating a sapling hydrating system for a planting apparatus. The method comprising determining a release pressure of hydrating fluid for a release valve to hydrate a sapling based on a target distribution rate of the hydrating fluid, wherein the target distribution rate is received via an input signal. The method further comprising controlling a supply pressure of the hydrating fluid from a pump to be greater than or equal to the release pressure, and controlling an unloading valve fluidly disposed between the pump and a hydrating fluid storage tank. The unloading valve regulating a maximum supply pressure. The method further includes controlling the release valve to provide a first portion of the hydraulic fluid to the release valve at an unloading pressure greater than or equal to the release pressure, and directing the remainder of the hydrating fluid back to the storage tank.