PROBLEM TO BE SOLVED: To provide plant culture pots and a method for manufacturing the plant culture pots that can be prevented from the mutual close contact of bottom wall parts with simple configuration and can be easily taken out when stacked for use.SOLUTION: Ribs 4 rise at the same height as the depth of each recess 3b from the bottoms of the recesses 3b, 3b adjacently arranged on both sides. When a plurality (two in the figure) of seedling raising pots 1 are vertically superimposed, the tip of the rib 4 rising from the recess 3b of a bottom wall part outer surface 3a of a seedling raising pot 1 located on the upper side abuts on the upper face of a protrusion 3d of a bottom wall part inner surface 3c of the seedling raising pot 1 located on the lower side, and a space 5 equivalent to the height of the rib 4 is formed between the bottom wall part 3 of the upper seedling raising pot 1 and the bottom wall part 3 of the lower seedling raising pot 1. Since the mutual close contact of the bottom wall parts 3, 3 of the upper and lower pots 1, 1 can be prevented by the ribs 4, the pots can be easily taken out one by one from the upper part of a stacked group.COPYRIGHT: (C)2013,JPO&INPIT【課題】簡便な構成によって底壁部同士の密着を防止でき、積み重ねて使用する際にも容易に取り出せる植物培養ポット及びその製造方法を提供する。【解決手段】リブ4は両側に隣接配置された凹部3b,3bの底から各凹部3bの深さと同一高さで起立している。複数個(図では2個)の育苗ポット1を上下方向に重ね合わせたときに、上側に位置する育苗ポット1の底壁部外面3aの凹部3bから起立するリブ4の先端が、下側に位置する育苗ポット1の底壁部内面3cの凸部3dの上面に当接し、上側育苗ポット1の底壁部3と下側育苗ポット1の底壁部3との間にリブ4の高さに相当する空間5が形成される。リブ4によって上下のポット1,1の底壁部3,3同士の密着を防止できるので、積み重ねた集団の上方から1枚ずつ容易に取り出すことができる。【選択図】 図5