This page contains specific information about pedunculate oak (Quercus robur) '3325', which can be found in the park of the Hof te Dieren in Dieren (municipality of Rheden). The girth of the tree is 3.28 m measured at a height of 1.30 m (Nov 7, 2011, L. Goudzwaard & J. Philippona). Its height is exactly 41.80 m (Nov 7, 2011, laser with Sine method (e.g. Nikon Forestry 550 laser rangefinder), L. Goudzwaard & J. Philippona). This tree was planted around the year 1820 ± 10, which makes it around 193 ± 10 years old (Jeroen Philippona, Oct 1, 2011).
The growth rate shown in the table shows the yearly average increase in girth since the last measurement. This value only gives an indication of the growth rate, since every measurement could be done at slightly different heights and during different periods of the year.
Growth rate
The girth was measured more than once:| Year | Girth@1.3 m | Measurement | Growth rate |
| 2009 | 3.22 m | Jeroen Philippona | - |
| 2011 | 3.28 m | L. Goudzwaard & J. Philippona | 3 cm/year |
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Photos
The photos are provided by Jeroen Philippona.
At this photo the silhouet of the tallest oak as well as one of the 10 tallest beeches of the Netherlands can be seen. The oak (41.8 m tall) just right of the house with the pointed crown, the beech (42.4 m) is the tallest tree at the right side of the photo.