PROBLEM TO BE SOLVED: To provide a tray for receiving a plantation block in a wall-greening installation, enabling the whole greening plants to be surely watered. SOLUTION: The tray 3 for receiving the plantation block used in the wall-greening installation 1 is installed by being supported by the outer wall face W of a building, and allows the plantation block 4 to be arranged thereon. The tray 3 has a storing part 3h for storing the water, a tray bottom part 3d allowing the plantation block to be arranged thereon, and a back plate 3a of the tray bottom part, stood from the edge side of the tray bottom part at the outer wall face side of the building. A dam part 3f is formed at the lower half part of a back plate, and a water-receiving part 3g tilted to the outer wall surface side is formed at the upper half part. COPYRIGHT: (C)2006,JPO&NCIPI