The present invention provides a plant cultivating container (14) comprising at least one receiver (3) for housing the roots of plants, and at least one water feeder (7) communicated with the receiver to allow water to be supplied to the plants via the water feeder. The plant cultivating container further comprises a through hole (7) that can function as the water feeder and is provided to a bottom part of the receiver,at least one float portion (13) capable of floating on a water surface, and the bottom part of the receiver being positioned below the water surface in a state in which the plant cultivating container is floated on the water surface by the float portion.
