Brunnen der Fruchtbarkeit, Heritage fountain in Prenzlauer Berg, Germany.

The Brunnen der Fruchtbarkeit, commonly called the Stierbrunnen (Bull Fountain), stands on Arnswalder Platz in Prenzlauer Berg. Its red porphyry ensemble rises from a 6.35-metre pedestal reached by 14 steps: two 5-metre bulls face away from an 8-metre basin whose mushroom-shaped centre spouts the water jets.

The Weimar Republic commissioned Hugo Lederer's fertility fountain for Baltenplatz in Friedrichshain; his 1931 model was carved in red porphyry at the Rochlitz quarries, and 300 m³ of blocks reached Berlin in 1934. Cast-iron sewers under Baltenplatz could not bear the weight, and the marshy Forckenbeckplatz was rejected, so the ensemble went to Arnswalder Platz. The Nazis refused it but a court forced them to cover the costs; it has stood there since 1934 and was listed as a protected monument in 1977.

Berliners call it the Stierbrunnen, the Bull Fountain, because the two porphyry bulls by Hugo Lederer dominate the basin; German city maps also mark it under this name. Since September 2012 residents have held regular clean-up days and planted flower beds around it, and they celebrate together under the motto "STIERisch gut", a pun on the German phrase "tierisch gut".

The fountain stands in the green space on Arnswalder Platz in Prenzlauer Berg, raised on a 6.35 m pedestal reached by 14 steps, so the basin and the two 5 m bulls are seen from below. It runs with breaks during the cold season. Since September 2012 residents have held regular Saturday clean-up sessions, planting flower beds and organising festivals under the motto "STIERisch gut".

Berliners rarely use the official name: because of Hugo Lederer's two 5-metre bulls, they call it the Stierbrunnen (Bull Fountain), and it appears under that name on German city maps. Since September 2012 residents have held clean-up days and neighbourhood festivals under the punning motto "STIERisch gut".