This invention relates to a modular rotatable gardening system (10), comprising a modular main frame (30) supporting a drum (20) for growing plants. This modular rotatable gardening system (10) can be stacked on top of one or more other modular rotatable gardening systems (10), and also combined in-line. The modular rotatable gardening system (10) may additionally comprise a modular hot air removal ductwork, and may additionally comprise a CO2 delivery system (120).
