The Oak, The Treetower and The Willow header image

The Oak, The Treetower and The Willow

The terrain of Het Hof van Cartesius has a long history. After leaving its industrial past behind, it had no human purpose for a while. This wild piece of land became increasingly green, and the trees that grew there provided shade for this small ecosystem. Children loved to play in one of the trees, an oak, building tree houses.

The area was given a new purpose: the Hof of Cartesius. In the construction plans three trees were spared, including the oak. It did lose its neighbor, a poplar, and where this poplar once stood, the Boomtoren was erected, now living between willow and oak.

The residents of the Tree Tower tried to be good neighbors to these two trees. They deepened their relationship until they discovered that they were no neighbors, but part of the same ecosystem. And in that new relationship, they suddenly wondered: how old are they, actually?

They learned a little about dendrochronology and went to the willow and oak trees with a tape measure. By measuring the circumference of the trees and looking up their growth factors, they were able to estimate their age. The result could not be a coincidence: both trees were from 1946.

Now, 80 years later, it's their birthday. And we're celebrating! Come celebrate the birthday of the willow and the oak.

Start21 Mar 2026, 11:00
End21 Mar 2026, 11:30
locationHof van Cartesius, Vlampijpstraat 94, 3534 AR, Utrecht
PriceFree
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The Oak, The Treetower and The Willow
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, Vlampijpstraat 94
The Oak, The Treetower and The Willow

The Oak, The Treetower and The Willow

event

The terrain of Het Hof van Cartesius has a long history. After leaving its industrial past behind, it had no human purpose for a while. This wild piece of land became increasingly green, and the trees that grew there provided shade for this small ecosystem. Children loved to play in one of the trees, an oak, building tree houses.

The area was given a new purpose: the Hof of Cartesius. In the construction plans three trees were spared, including the oak. It did lose its neighbor, a poplar, and where this poplar once stood, the Boomtoren was erected, now living between willow and oak.

The residents of the Tree Tower tried to be good neighbors to these two trees. They deepened their relationship until they discovered that they were no neighbors, but part of the same ecosystem. And in that new relationship, they suddenly wondered: how old are they, actually?

They learned a little about dendrochronology and went to the willow and oak trees with a tape measure. By measuring the circumference of the trees and looking up their growth factors, they were able to estimate their age. The result could not be a coincidence: both trees were from 1946.

Now, 80 years later, it's their birthday. And we're celebrating! Come celebrate the birthday of the willow and the oak.

Start21 Mar 2026, 11:00
End21 Mar 2026, 11:30
locationHof van Cartesius, Vlampijpstraat 94, 3534 AR, Utrecht
PriceFree
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