The structure comprises two or more decorative elements E1, E2, E3, E4 joined at contact lines CL1, CL2, CL3, CL4, each element comprising a backing structure B1, B2, B3, B4 comprising ornamental plant material M on its front surface FS1, FS2, FS3, FS4, the structure further comprising a fastening structure for fastening the elements to an object W, the fastening structure STL, STV1, STV2 comprising one or more adhesive strips having an adhesive surface on one side for attachment to the object and protrusions HS on its opposite side for gripping a porous surface of the back surface of the backing structure, the adhesive strips being placed parallel to the contact lines at the contact lines. There may be at least four decorative elements. The backing structure may be polypropene or felt. The projections may be hooks of Velcro (RTM) type. The ornamental plant material may be reindeer lichen or reindeer moss. The adhesive surface may comprise glue. The object may be a wall.
