To provide shape retention frames that can prevent the appearance of an ornamental plant from being spoiled or lost, by inhibiting the vertical movement and horizontal rotation of a support member that supports the ornamental plant.SOLUTION: The shape retention frame 1 of the present invention is a frame retaining three column members 7 with substantially v-like shape in side view upside down to keep the shape of the three column members 7, 7, 7 constantly, which are set up in a bowl 5 in order to support an ornamental plant, the frame having three retention members 2 having a vertical column retention rod 2A for retaining a vertical column 7A of each column member 7 that is set up in the bowl 5, and an oblique column retention rod 2B for retaining an oblique column 7B extending from the upper part to the front down of the vertical column 7A of each column member 7, a horizontal rod 2C extending to a substantially horizontal direction from a lower portion of the vertical column retention rod 2A of each retention member 2 being connected to each other.SELECTED DRAWING: Figure 2【課題】鑑賞植物を支える支持部材の上下移動・水平回動を抑止して、鑑賞植物の見栄えを損ねたり型崩れしたりすることを防止できる保形フレームを提供する。【解決手段】保形フレーム1は、鑑賞植物を支えるために鉢5内に立てられる側面視天地逆略レの字状の支柱部材7の3本を保持して当該3本の支柱部材7,7,7の形態を一定に保つフレームであって、鉢5内に立てられる各支柱部材7の竪柱部7Aを保持する竪柱保持杆部2Aと、各支柱部材7の竪柱部7Aの上部から前下がりに延在する斜め柱部7Bを保持する斜め柱保持杆部2Bとを備える保持部材2を3本有していて、各保持部材2の竪柱保持杆部2Aの下部からそれぞれ略水平方向に延在する水平杆部2Cが、連結されて成るものである。【選択図】図2