Abstract: A portable, self-contained greenhouse includes a base pan having longitudinally extending troughs adjacent the sides thereof and a curved bottom panel. A transparent enclosure including a plurality of slidable, transparent wall and roof panels is supported on the base pan. An automatic heating arrangement is disposed partially within the base pan for uniformly heating the soil mixture contained therein. Artificial lights and a control system are included for selectively, artificially stimulating the plants as a function of ambient lighting conditions. A moisture indicator is also provided.