Abstract: A hydroponics plant growing assembly (10) that is comprised of a plant-root expansion structure (12), a moisture retaining upper pad (26), a moisture retaining lower pad (48), a structure and pads sleeve (62) and a structure and pads retaining enclosure (72). The upper and lower pads (26,48) are dimensioned to be placed respectively over and under the structure (12). The sleeve (62) is dimensioned to be placed over the structure and the pads to prevent mineralized water that is poured into the upper pad (26) from spilling over the sides of the upper pad (26) and the structure (12). The enclosure (72) includes a plurality of trays (76) that are each dimensioned to receive and secure the expansion structure (12) with the attached upper and lower pads (26,48).