PURPOSE: To obtain a bottom-closed pot having large diameter, made of a thin film and resistant to the falling-off of soil in the transplantation work, etc.

CONSTITUTION: This bottom-closed pot has an essentially closed bottom part 6 at the lower part of the side walls of a hexagonal cylindrical pot P1 made of two thin films 1, 2. The bottom part 6 is formed by integrating a 1st partial bottom 7, a 2nd partial bottom 8 and a 3rd partial bottom 9. The 1st partial bottom 7 is extended between the opposing side walls (b) and (e) and the 2nd partial bottom 8 and the 3rd partial bottom 9 are extended between the adjacent side walls (c) and (d) and walls (a) and (f).