The Oak of the Sulzwiese

Its crown alone covers more ground than most Viennese apartment buildings. The pedunculate oak of the Sulzwiese, a meadow in the Grüner Prater away from the funfair and the Ferris wheel, has a canopy that spreads roughly 45 metres across, wide enough that someone standing under one edge of it cannot see a person standing under the other through the branches. The trunk itself is a comparatively modest 4.28 metres around, which tells you this tree grew in the open, in full sun, with nothing crowding its sides, rather than competing for light in a forest the way most old oaks do. That kind of open-grown oak puts its energy into width rather than height, and the Sulzwiese oak is a textbook result: a low, spreading giant rather than a tall one. No planting record has surfaced to say exactly how old it is, so any figure here is an estimate rather than a fact, but a crown this size on an open-grown oak typically points to somewhere between 150 and 250 years, a wide range stated honestly rather than rounded to something tidier. Vienna registered it as Naturdenkmal Nr. 846, one of eighteen protected natural monuments in the Prater's home district of Leopoldstadt, and it remains one of the most photographed trees in the park precisely because its shape is so unusual.