The invention relates to a floating assembly structure with independent support, intended for securing containers or substrates for floating plant species crops. The structure is shaped like a flat polygon with at least three sides and has at least two elements for assembly with another floating assembly structures, such that a meshed system can be formed on the surface of the water by assembling multiple structures to one another. Furthermore the structure includes a plurality of coupling bars for securing the aforementioned containers and is configured to withstand the forces and moments generated by the movement of the water and by the growth of the plants.
