PROBLEM TO BE SOLVED: To provide a planting panel integrated including a watering/drainage mechanism so as to construct wall surface greening using rainwater. SOLUTION: This planting panel 1 includes conduit tubes 2A and 2B for watering. Only the one side conduit tube 2A has a watering hole 18 so as to conduct the half of water passing the conduit tube to a lower stair, and as a result of this, watering to the whole of plants planted in the planting panel of multiple stairs becomes possible. Since the planting panel and a watering hose are installed at the same time, the installation operation of a wall surface greening structure becomes easy. The planting panel 1 has a drainage layer 3 formed by two ribs 21, and has a hole 19 for drainage on the bottom, and as a result of this, even drainage becomes possible and it becomes unnecessary to fill pearlite on a planting bottom so as to facilitate planting work. Furthermore, resource saving/energy saving watering by rainwater becomes possible by connecting a gutter 11 and the conduit tubes 2 to each other. COPYRIGHT: (C)2011,JPO&INPIT