Localized plant site irrigation for plant support towers

A vertical grow tower comprising:

• a. a plurality of segments including a first segment vertically disposed above a second segment, which itself is disposed above a third segment, wherein
• i. each segment has at least one plant site for receiving at least one plant capsule, and
• ii. each segment includes one or more drainage channels.

An irrigation assembly comprising:

• a main manifold for conveying fluid;
• and
• a plurality of branch irrigation lines stemming from the main manifold, wherein each irrigation line is operable to convey fluid from the main manifold, and has a plurality of openings for emitting the fluid.

A tower conveyance system comprising:

• a. a track for carrying one or more double-sided grow towers, wherein the track has a forward end and a return end, and each tower has two sides;
• and
• b. a reversing mechanism for receiving a set of the one or more towers at the return end, wherein the set has a leading edge and a trailing edge relative to the direction of travel, and for repositioning the set so that the leading edge of the set received by the reversing mechanism becomes the trailing edge of the set when the reversing mechanism moves the towers to the forward end.

A plant support structure comprising:

• a plurality of segments, each segment including at least one plant site;
• and
• a coupling attached to one or more segments of the plurality of segments, wherein the coupling is adjustable to increase distances between the segments of the plurality of segments.