Provided are a plant cultivation container, a plant cultivation method, and a method of producing a rooted cutting, in which a plant can be cultivated under a desired humidity condition, whereby a rooting rate can be enhanced and extension of a root can be promoted. In the plant cultivation container in which a plant cultivating medium (2) is provided in an inside of a container body (1) with a substantially hermetically sealed structure, a partition wall (3) that partitions the inside of the container body (1) into two upper portion and lower portion and supports the medium (2) is provided in the container body (1). The upper portion of the container body (1) defined by partitioning of the partition wall (3) constitutes a high-humidity chamber (4), and the lower portion of the container body (1) constitutes a low-humidity chamber (5). A bent hole (7) that allows the medium (2) and the low-humidity chamber (4) to communicate with each other is provided in the partition wall (3). A high-humidity state is achieved in the high-humidity chamber (4), and a low-humidity state is achieved in the low-humidity chamber (5). Low-humidity air is supplied from the vent hole (7) to the medium (2).
