The invention relates to a tower for a wind energy plant having walls which are produced at least partially from individual wall sections made from a wooden material, the wall sections being connected to one another via connecting means, and to a method for erecting a tower of this type. It is therefore an object of the invention to provide a tower for a wind power plant, which tower makes a greater rotor blade length possible with an unchanged height of the tower of the wind power plant and with an unchanged projection of the rotor beyond the tower outer side as viewed from the tower center axis. The object according to the invention is achieved by virtue of the fact that an falsework is provided at least partially in the tower interior, by way of which falsework the wall sections are connected in a retentive manner, and the wall sections are arranged on the falsework in such a way that a surface line which is produced in the case of a vertical section through the tower wall which is formed from wall sections has a gradient which becomes greater as the tower height increases.