Wildapfel im Fort Hahneberg, Protected wild apple tree at Fort Hahneberg, Spandau, Germany

The wild apple at Fort Hahneberg is a protected tree of the Malus prunifolia species located in the right courtyard of the fort. It produces white five-petaled flowers in spring and develops small red fruits when autumn arrives.

The tree was designated a natural monument in 2001, when its age was estimated at 80 to 100 years, though that estimate may be too high. It likely established itself in the right courtyard of Fort Hahneberg on its own. The sand covering the barracks slid into the courtyard around 1947, probably during extraction of construction material.

The wild apple carries a name reflecting its untamed ancestry, distinct from cultivated varieties found in gardens. Visitors can observe how an original fruit-bearing species has taken root within a historical military compound.

A protective fence surrounds the tree to keep grazing animals from damaging it. Visitors exploring the fort can find this protected specimen within the right courtyard area.

The sand covering the fort's barracks slid into the right courtyard around 1947, likely in the course of extracting construction material, not wartime destruction. The tree, whose age at protection in 2001 was estimated at 80 to 100 years, may have settled there on its own before that sand arrived.