Now, these no-bend garden boxes keep plants hydrated via a series of innovative, connected reservoirs that deliver water to roots on demand. We replaced the cedar planter box floor with two generous 5-gallon reservoirs that extend the time between waterings and create more even moisture throughout the bed. In tests, our crops grew stronger and taller — faster. And, since water is drawn primarily from the bottom instead of applied from the top, less water is lost to evaporation too! And a single fill tube makes refills easy-peasy.