|Castle Bleu in Trooz|
You can find the monumental trees in Belgium. Listed are 1448 specimens of various species. And you can find Giant Sequoia trees that are growing in Belgium! Today there are 956 Sequoias listed. I had trouble clicking on the marker except when I was in the big map. Look at all of those trees! Indeed, the Castle of Dave has three specimens! Mammoetbomen! Not so often, do you see a castle with a Giant Sequoia. Or do you if you are looking outside of California?
Who was spreading the seeds around 150 years ago? The Monumental Trees website has this History of the Giant Sequoia. They say "During the second half of the 19th century it was fashionable for European castle lords to lay out a so called English garden (also called a garden in landscape style). These gardens, influenced by Romanticism, were gardens consisting of apparent wild parts, winding paths and an abundance of plant species.
"As soon as the forests of giants were discovered in the Californian mountains during the gold rush (in 1852), the giant sequoia became a very fashionable tree to plant in these gardens, that were often constructed as arboreta with lots of exotic, recently discovered trees. This explains why the oldest specimens outside their natural range can be found in European castle gardens and arboreta.
"In the U.K. the oldest ones can be found. The climate is ideal and the trees are growing very fast. The tallest giant sequoias already reach 54 m (177 ft). They can be found in Benmore Botanic Garden in Scotland. The thickest ones have a girth of more than 11 m (36 ft).
Also in France the tree became a popular tree: entire avenues were planted with this tree. In Belgium the largest specimen has a girth of 9 m (30 ft) at 1.5 m height."