A flower box for a sloping roof, in particular in an arrangement on pantiles, having a rear wall which rests against the roof or against a pantile, having a front wall which is substantially parallel to said rear wall, having two side walls and a bottom part, the front wall (2) being arranged at an acute angle ( alpha ) to the rear wall (3) in a V-position relative thereto, and the rear wall (3) having at least one opening (6) for the engagement of holding elements (7, 8, 9) connected to the roof or a shape which is suitable for bonding to at least one pantile (20). <IMAGE>