To firmly hold various pot plants with different dimensions.

This holder has a holding part 2 set to a dimension larger than a pot plant so as to be capable of hosing the pot plant, and a slippage suppressor 4 attachably/detachably or rotatably mounted on the holding part 2, which supports the pot plant while suppressing the slippage by elastically making contact with the pot plant. The slippage suppressor 4 has a hook part 10 to be hooked on the holding part 2 and an elastic member 11 formed continuously to the hook part 10, which elastically distorts in the state where it is supported on the holding part 2 by the hook part 10 and makes contact with the pot plant to suppress the slippage of the pot plant. The elastic member 11 is formed of an elastic wire rod bent in U-shape.