(57) [Abstract] [Problem] To provide a greenhouse capable of arbitrarily collecting rainwater. SOLUTION: The canopy is formed into a plurality of chevrons and arranged laterally on the upper part of the side wall of the greenhouse so that the crests of each canopy can be folded and one longitudinal end of the hem is rotatably attached to the upper part of the side wall. The other end is movably attached from the attachment portion to an adjacent canopy chevron hem rotation attachment portion, and the greenhouse canopy can be opened and closed by moving the canopy hem portion. [Effect] Soil can be activated by incorporating rainwater into the greenhouse due to natural rainfall, and the need for soil replacement is eliminated.
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