Oldhamii or Giant Timber Bamboo is a favorite among theme parks and sub-division entrances and for good reason. It is a beautiful large bamboo that can fit into smaller areas. It is perfectly upright and has an open structure that creates more of a screen then a wall. Clumping bamboos tend to be visual barriers unless they are heavily manicured and Oldhamii is an exception to this. It is not a fast grower but is definitely worth the effort. It does not like wet feet and prefers regular irrigation and fertilizer in well drained soil for optimal performance. This bamboo is majestic and will reach 3-4″ in diameter while staying around 25′ in height.