The present invention relates to a bag, associated system and method for covering, retaining and/or stabilising a slope or embankment. The said bag has an opening for accommodating a plant, securing means to seal the bag, and a cover that overlaps the opening wherein the cover is positionable to direct the direction of growth of the plant. The said bag is utilised in the construction of a geobarrier system which comprises of a plurality of units placed side by side and/or stacked on top of each other wherein each unit comprises of an anchorage mechanism attached to a base of the said bag； a first portion of the anchorage mechanism adjacent to the said bag capable of receiving a second bag containing a first material； a second portion of the anchorage mechanism capable of receiving a second material, wherein the second material comprises at least one hydraulic property contrasted with respect to at least one hyd raulic property of first material to form a capillary barrier, and a third portion of the anchorage mechanism capable of receiving a third material comprising compacted soil.
