Movable stake and method of using it for supporting and managing the cultivation of plant species, such as a vineyard or the like, in which at least one part of the branches are buried in the soil during the cold season. The movable stake includes a deformable element on which are fastened the branches to be buried and has a first free end and a second end anchored to the ground; the first free end is suitable to be engaged either with the soil or with a horizontal wire that supports the branches of the plant being cultivated.