The invention refers to a decorative aggregate (10) adapted to be mounted to a surface (100). The aggregate (10) comprises a plurality of elements (1). Each element comprises a container (2) having a bottom wall (3) and side walls (4) delimiting a cavity (5), a filling (9) of a vegetative material disposed in the cavity (5), and a fastener (8) adapted to mount the element (1) to the surface (100). The invention also refers to an element of a decorative aggregate.
