The invention concerns a method for producing a vegetated mat comprising a plurality of plates (7) containing plants (1) on a base layer (2) absorbing water and formed with an organic material resting on a supporting lap (3). The invention is characterised in that it consists in arranging on the supporting lap (3) a corresponding plurality of moulds (8), filling the moulds (8) with the base layer (2), allowing the plants to develop roots, removing the moulds (8), cutting out the supporting lap (3) in the free spaces (10) after the moulds (8) have been removed, and setting the plates (7) on a receiving support. The invention also concerns a plate for a vegetated mat wherein the material of the supporting lap (3) is selected from the group including geotextile materials, textile materials and plastic materials. The invention further concerns the resulting vegetated mats. It is applicable in particular to temporary floral decorations or to fight against erosion.
