Minecraft wiki entry for Tree_farming, associated text: Tree farming is the process of planting a large number of saplings and waiting for them to grow into trees. These trees are then harvested for wood and more saplings, which can be used to grow another generation of trees. This can be repeated indefinitely, yielding a regular supply of logs without the hassle of covering large areas of terrain, therefore making wood a renewable resource. A secondary benefit of tree farming is that it allows conservation of the surrounding environment. The use of bone meal can speed up the process, or players can just plant the saplings and go do something else while they grow.