To improve the uniformity with a flower material and to achieve improved harmony with the flower material and to manufacturing a vase at low costs by mounting a flower insertion member to the specific part of driftwood or a fallen tree by wind, and further performing specific treatment.

Mud, a rotten part, and moss adhering to sampled driftwood or a fallen tree by wind are washed, and the driftwood and the fallen tree are polished to shape into a body part 2, then a surplus part is cut from the body part 2 to the extent so that natural form is not lost, at the same time a leg part 8 is mounted so that the body part 2 is erected stably, then a recessed part 4 for inserting a flower insertion tool 5 is formed at a branch root 3 where the sampled driftwood or the fallen tree has been shaped, and finally the branch root 3 is mounted to a position for enhancing the harmony between a flower material F and the body part 2 when the flower material F is inserted into the flower insertion tool 5.