In a preferred embodiment, a freestanding vertical horticultural apparatus for commercial and/or home use for growing of plants in containers includes a plurality of containers arranged in a plurality of mutually vertically spaced groups which are rotatably supported in brackets by an elongated vertical spindle through which is routed a pressurized fluid supply line which is coupled to a spray emitter by way of a flow adjustment valve. At a flow rate determined by the valve, the emitter sprays irrigation fluid inside a hollow distributor body positioned at the top of the apparatus. The lower portion of the distributor body is segmented into a plurality of sumps, each of which feeds a substantially uniform quantity of the fluid under gravity to each respective one of the containers by way of a respective fluid delivery tube, one of which is coupled to the lower portion of each sump.
