PROBLEM TO BE SOLVED: To provide a holding tool for support columns for greening use, capable of stably and nearly vertically setting greening support columns supporting a liane plant on various holding parts such as veranda handrails or support columns thereof. SOLUTION: The holding tool 1 is provided, being intended for holding nearly vertically a greening support column 6 supporting a liane plant on a holding part 10 such as a veranda handrail. This holding tool 1 comprises: a holding tool body 19 to be set on a handrail 7 using a binder 17; and a lid member 20 to be fitted on the body 19, wherein the holding tool body 19 has a setting part 35 for a handrail on the rear end portion in the longitudinal direction and a holding groove 32 to be engaged with the held portion 45 of the greening support column 6 on the front end portion; and the lid member 20 is set on the body 19 so as to cover the held portion 45 after engaging it on the holding groove 32. In this holding tool 1, the held portion 45 of the greening support column 6 can be threaded into a holding hole 79 formed by setting the lid member 20 on the body 19. COPYRIGHT: (C)2013,JPO&INPIT