PROBLEM TO BE SOLVED: To provide a pot assembly system in which a support member used for supporting an ornamental plant does not damage the stem or root of the ornamental plant. SOLUTION: This pot gathering system 1 includes a unit pot U for planting an ornamental plant, an outer container 2 for accommodating a plurality of the unit pots U at a predetermined position 11 in the container 2 and having an upper surface opening 2B, and a flower stalk of the ornamental plant. It has a vertical pillar part 3A for supporting the plant and an oblique pillar part 3B for supporting the flower cluster of the appreciation plant extending from the upper part of the vertical pillar part 3A downward to the front, and is deployed in the unit pot U to support the appreciation plant. It is provided with a support column member 3, and a vertical column portion 3A of the support column member 3 is erected on the peripheral wall of the unit pot U. Further, it is provided with an expansion / contraction mechanism 46 that allows the vertical column portion 3A and / or the diagonal column portion 3B of the column member 3 to be expanded / contracted in the column longitudinal direction (arrow M direction). [Selection diagram] Fig. 3【課題】鑑賞植物を支えるために用いられる支柱部材が鑑賞植物の茎や根などを傷つけることのない鉢集合システムを提供する。【解決手段】この鉢集合システム１は、鑑賞植物を植えるユニット鉢Ｕと、ユニット鉢Ｕの複数を容器２内の所定位置１１に収容し上面開口２Ｂを有する外側容器２と、鑑賞植物の花茎を支えるための竪柱部３Ａおよび竪柱部３Ａの上部から前下がりに延在して鑑賞植物の花房を支えるための斜め柱部３Ｂを有して成りユニット鉢Ｕに配備されて鑑賞植物を支える支柱部材３と、を備えて成るものであって、支柱部材３の竪柱部３Ａがユニット鉢Ｕの周壁に立設されている。また、支柱部材３の竪柱部３Ａおよび／または斜め柱部３Ｂを柱長手方向（矢印Ｍ方向）に伸縮自在とする伸縮機構４６を備えている。【選択図】図３
