Apparatus for growing cannabis is created from a conventionalrectangular shipping container with fork lifting channels in the floor andhavingstacking connectors by which one container can be stacked on another andincludesstanding plant support racks arranged at stationary positions along sides ofthecontainer for receiving plants thereon at a selected stage of growth,typically theflowering stage. First and second rows of lighting components are arranged onrespective sides each with a cooling duct extending from a filtered inlet atthe front toan extraction fan at the rear. The lighting is carried on two longitudinalcable railseach along a respective side. The air-conditioning system includes twoexteriorcondensers mounted on the rear panel above the center line each supplying atleasttwo interior evaporators. The front panel of the container is removed andreplacedby a new front panel with a central door.