A modular potting system includes a rigid base unit with one or more modules; at least one interchangeable plant node container, the interchangeable plant node container having an iris control lever, and a locking ring; and an internal irrigation system having a spiral drip emitter tube positioned throughout the rigid base unit, an upper water inlet, a base drip emitter tube positioned at the base of the rigid base unit, a base water inlet, and at least a water outlet.

A vertical growing system includes an uppermost multiple arm structure with a series of arms that extend horizontally outward from a vertical post adjacent its top end. Each of these arms includes a gear attached to its distal end which rotates in response to a rotation of the arm. A lowermost multiple arm structure is generally identical to the uppermost multiple arm structure, but adjacent the lower end of the post. Each of the arms of the lowermost multiple arm structure is aligned in the same vertical plane as a corresponding arm of the uppermost multiple arm structure. Each set of vertically aligned arms includes a chain that rotates about the gears of the set. Pairs of plant support bars extend horizontally from opposite sides of the chains at various vertical heights. Each plant support bar supports one or more plant-holding hangers.