PROBLEM TO BE SOLVED: To provide a system for three-dimensional cultivation, capable of arranging and three-dimensionally supporting a plurality of vines of liana plants creeping, extending, and spreading along the ground, and therefore not requiring a place for the cultivation, and further having no fear that a planter in which the plants are planted and cultivated falls down. SOLUTION: This planter 1 has a plurality of straight-through insertion holes 7 on its upper surface, wherein a plurality of props 5 are inserted into the holes 7 and buried in the ground, so that the planter 1 is supported by parts 8 of the props 5 buried under the ground. When the planter 1 is used in a terrace, and the like, in which the ground is not utilized, bottom face stoppers 13 are each attached to a plurality of the props 5, so that the planter 1 is supported by the bottom face stoppers 13. A cylindrical net 2 equipped with rings is arranged on the outside of the props 5 and then joined to each of the props 5 by using strings 11 attached thereto, so that the net 2 is supported. Thus, the cylindrical net 2 equipped with the rings supports the plants, and further, the props 5 which are inserted into the insertion holes 7 of the planter 1 support the planter 1 as a whole by using the parts 8 buried under the ground, and therefore it is not feared that the planter 1 falls down. Further, two of large and small dome-shaped props 6 form a hot cap 10 and a rainproof cap 10 necessary for cultivating the plants, respectively. COPYRIGHT: (C)2006,JPO&NCIPI