To provide a planting container holder to a fence capable of not only increasing the degree of freedom of the decorating position of a planting container in the fence but also easily changing the decorating position of the planting container in the fence within the rotation range of an arm even if after the holder is attached to a certain place of the fence by being able to be detachably attached to anywhere in the almost entire area of the fence, and reducing the time and labor of attaching the holder to the fence and horizontally and neatly arranging and decorating the planting containers easily by supporting two or more planting containers by one holder.

The planting container holder comprises a fence attaching body 2 to be detachably attached to the fence by clamping the constituting element of the fence F, the arm 8 pivoted to the fence attaching body 2 at a base end part 8a so as to be rotated around a vertical axis by a pivoting mechanism 3 and extended in the direction of separating from the fence F from the base end part 8a, and a supporting body 9 attached to the tip part 8b of the arm 8 for supporting the planting container P.