A modular tray is provided for covering a portion of a surface with vegetation in a growth medium. The tray includes a pair of sidewalls, and a lower end wall and an upper end wall extending between and interconnecting the ends of the sidewalls such that the walls define a perimeter of the tray. A bottom wall extends between and interconnects the ends of the sidewalls and the lower end wall and extends in a plane disposed at an angle with the respect to the longitudinal axis of the sidewalls. Each of a plurality of platforms extends between and interconnects the sidewalls and are disposed at an angle with respect to the longitudinal axis of the sidewalls. Each of a plurality of risers extends between the rear edge of a platform to the front edge of an adjacent platform. The tray is water impermeable for accommodating the growth medium and vegetation.
