Mizunuke is a term used in bonsai to describe the process of water drainage from the bottom of a pot. It is also known as mizuhake. Mizunuke is important for the health and growth of the bonsai tree, as it allows oxygen to reach the roots after the soil particles dry up. Mizunuke depends on the type and quality of the soil, as well as the size and number of holes in the pot. Poor mizunuke can lead to mizugire, which is the termination of water supply and can cause branches to die or leaves to fall.