A self-watering container with a bottom reservoir, a wicking system, a fill tube, and a plastic cover with a mulch strip. The plant feeds from the top layer and drinks water from below via capillary action.
Jeremy uses EarthBoxes throughout the 10x10 for lettuce and cannabis, calls them 'so easy' for home vegetable production, and mentions he will set up a brand-new EarthBox from scratch in a coming episode.