Abstract: A geocomposite element, particularly for enhancing plant growth, which possesses water permeable sheathing elements as well as a material that absorbs water placed in a cavity made by the sheathing elements, characterised in that it possesses a skeleton structure (3) that forms a cavity for the absorbent material (4) and a sheath (2) located on the surface of the skeleton structure. The present invention is of use in agriculture, gardening, construction and environmental engineering as an article for retaining water due to which it is possible to stabilise water equilibria which are conditional to plant growth as well as for the aggregation of other substrates influencing correct and effective plant growth.