A soilless system for high density plant growth, said system including: a greenhouse type structure; a plurality of elongate support members arranged substantially vertically in the greenhouse type structure, the support members having: - a body having a flow channel defined therein; and - a plurality of vertically spaced apart receptacles angularly disposed to the vertical axis of the body for receiving a plant therein, the receptacles being in flow communication with the flow channel; - a fluid supply system in fluid communication with the flow channel for supplying a fluid stream to the said flow channel; and - a fluid collection system for collecting residual fluid which has flowed through the flow channel, characterised in that the elongate support members are of wave shaped form and the wave shaped elongated support members are configured to provide a directional flow of the nutrient fluid assisted by fins inside the flow channel as well as the shape thereof. a greenhouse type structure; a plurality of elongate support members arranged substantially vertically in the greenhouse type structure, the support members having: - a body having a flow channel defined therein; and - a plurality of vertically spaced apart receptacles angularly disposed to the vertical axis of the body for receiving a plant therein, the receptacles being in flow communication with the flow channel; - a fluid supply system in fluid communication with the flow channel for supplying a fluid stream to the said flow channel; and - a fluid collection system for collecting residual fluid which has flowed through the flow channel, characterised in that the elongate support members are of wave shaped form and the wave shaped elongated support members are configured to provide a directional flow of the nutrient fluid assisted by fins inside the flow channel as well as the shape thereof. - a body having a flow channel defined therein; and - a plurality of vertically spaced apart receptacles angularly disposed to the vertical axis of the body for receiving a plant therein, the receptacles being in flow communication with the flow channel; - a fluid supply system in fluid communication with the flow channel for supplying a fluid stream to the said flow channel; and - a fluid collection system for collecting residual fluid which has flowed through the flow channel, characterised in that the elongate support members are of wave shaped form and the wave shaped elongated support members are configured to provide a directional flow of the nutrient fluid assisted by fins inside the flow channel as well as the shape thereof. - a plurality of vertically spaced apart receptacles angularly disposed to the vertical axis of the body for receiving a plant therein, the receptacles being in flow communication with the flow channel; - a fluid supply system in fluid communication with the flow channel for supplying a fluid stream to the said flow channel; and - a fluid collection system for collecting residual fluid which has flowed through the flow channel, characterised in that the elongate support members are of wave shaped form and the wave shaped elongated support members are configured to provide a directional flow of the nutrient fluid assisted by fins inside the flow channel as well as the shape thereof.