Growing systems may include a number of modular growing chambers with integrated support columns that eliminate the need for an external support frame and which provide a simple way to remove chambers from a stack for harvesting. The chambers can be assembled around a growing plant. Pins provided on the support columns ensure alignment and provide for easy removal of a lower chamber by first supporting the stack and slightly lowering it relative to the stack. The chamber structure supports harvesting processes that permit harvesting of a chamber simply by shifting it relative to the stack and supporting the other chambers in a vertical position andshifting the chambers. A portable shifting device may provide automated support, shifting and removal of one or more chambers for harvesting.
