A device for planting roof greening plant

The utility model belongs to a device for planting roof greening plant, including the box body, the box body bottom is provided with cross water drainage tank, and the outlet has all been seted up with cross water drainage tank's the department of meeting to four preceding, back, left and right lateral walls of box body, be provided with a plurality of wash ports on cross water drainage tank's the lateral wall, the inboard of the preceding lateral wall of box body is provided with first lug, and the inboard of the back lateral wall of box body is provided with the second lug, the outside of the left side wall of box body and back lateral wall is provided with long -strip shaped convex respectively, is provided with the bar hole on the right side wall of box body and the preceding lateral wall respectively. The box body bottom is sealed, and cross water drainage tank separates into four catch basins with the box body, thereby ponding also can get into cross water drainage tank outflow box body along with the w