To facilitate assembly/disassembly and further to prevent a flowpot cove from becoming bulk when keeping or moving it.

Slits 1f whose open terminals are respectively inverted and link parts 1d and 1e having step parts 1g formed at the respective open terminals of these slits 1f are provided at both side edges of a plate-shaped cover member 1 and by mutually engaging the respective slits 1f of these link parts 1d and 1e, the plural cover member 1 are endlessly linked. Thus, since the plural cover member 1 are endlessly linked by mutually engaging the slits 1f of the link parts 1d and 1e while freely attachably and detachably fitting bottom plates 3 respectively onto the inner bottom parts of the cover members 1, the arbitrarily sized flowpot cover can be easily assembled. Besides, by separating the respective cover members 1 through the inverse operation of assembly, the flowpot cover can be easily disassembled and by storing the respective cover members 1 by being piled up, the flowpot cover is not bulky when keeping or moving it.