To provide a tool for stabilizing flower by inserting a horizontal rod into a cylinder and placing the flower between the passage cylinder and the rod when erecting the flower in a vase.

In this supporting cylinder, a horizontal rod is inserted into the cylinder before loading into a vase, the inside of the vase is divided into four portions, the two cylinders for beautifully stabilizing standing flowers easily are punched, and stainless, plastic, and antibacterial materials for allowing water to flow smoothly and keeping the flowers to be alive for a long time are used, thus preventing decaying.