PROBLEM TO BE SOLVED: To provide a plant cultivation container set for efficiently adjusting the temperature of soil filled in a container when cultivating plants. SOLUTION: This plant cultivation container set 100 includes a plurality of containers (for instance, a flowerpot 10), and each of the containers (for instance, the flowerpot 10) forming the plant cultivation container set 100 includes a side wall part 11 and a bottom wall part 21. A support part 13 to support the other containers superposed from the upper side is formed on the side wall part 11, and the bottom wall part 21 is provided with an insertion mechanism (for instance, an insertion hole 26) to insert a shaft tube 27 vertically piercing into a plurality of the containers in a condition of superposing a plurality of the containers. The shaft tube 27 includes, at least on one end, a connection part (for instance, a spiral ridge N) to be fixed and connected to a supply tube (for instance, a temperature adjusting medium supply tube 201) of a temperature adjusting device 200 supplying a temperature adjusting medium (for instance, hot air and cold air). COPYRIGHT: (C)2011,JPO&INPIT