{"id":212820,"date":"2024-03-13T04:56:00","date_gmt":"2024-03-13T04:56:00","guid":{"rendered":"https:\/\/michigandigitalnews.com\/index.php\/2024\/03\/13\/giant-sequoia-trees-are-growing-surprisingly-quickly-in-the-uk\/"},"modified":"2025-06-25T17:20:44","modified_gmt":"2025-06-25T17:20:44","slug":"giant-sequoia-trees-are-growing-surprisingly-quickly-in-the-uk","status":"publish","type":"post","link":"https:\/\/michigandigitalnews.com\/index.php\/2024\/03\/13\/giant-sequoia-trees-are-growing-surprisingly-quickly-in-the-uk\/","title":{"rendered":"Giant sequoia trees are growing surprisingly quickly in the UK"},"content":{"rendered":"

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Giant sequoias at Wakehurst in West Sussex, UK<\/p>\n

Visual Air\/RBG Kew<\/p>\n<\/div>\n<\/figcaption><\/figure>\n<\/p>\n

Giant sequoia trees are thriving in the UK, growing at a similar rate to those in California, the trees\u2019 native home.<\/p>\n

Reaching up to 90 metres in height, giant sequoias (Sequoiadendron giganteum<\/em>), also known as giant redwoods, are among the tallest trees in the world. The coniferous species is indigenous to the Sierra Nevada mountain range in California, but just 80,000 individuals remain there, largely due to increasingly frequent and destructive wildfires.<\/p>\n

Around half a million giant sequoias have been planted in the UK since the 19th century. \u201cGiant sequoias are being grown widely in the UK,\u201d says Mathias Disney<\/a> at University College London. \u201cThey are incredible and majestic, and clearly quite attractive to people.\u201d<\/p>\n

To understand how the trees are faring on this side of the pond, Disney and his colleagues analysed 97 of them from groves in Scotland and south-east England.<\/p>\n

Using laser scanners, the team mapped each tree in 3D to accurately determine how tall and wide it was and estimate how much it weighed.<\/p>\n

The tallest tree was in Scotland, with a height of just under 55 metres. This was unsurprising, says Disney, as the oldest records of giant sequoias planted in the UK are from Scotland.<\/p>\n

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The trees also seemed to be growing just as quickly as those in California, capturing 85 kilograms of carbon from the atmosphere every year on average.<\/p>\n

\u201cThat\u2019s very quick,\u201d says Disney. \u201cRather than having to wait 150 years for an oak tree to mature, giant sequoias become large within 50 years.\u201d<\/p>\n

The healthy growth rate might be down to the relatively stable climate in the UK, he says. \u201cThey\u2019re not going to be threatened by a lack of rainfall or increasing fires like in California.\u201d<\/p>\n

Although giant sequoias grow and trap carbon rapidly, Disney cautions against planting them en masse to tackle greenhouse gas emissions.<\/p>\n

\u201cWhile trees can of course help a little bit with carbon absorption, it\u2019s a slow process and you need a lot of them,\u201d he says. \u201cYou\u2019re better off protecting what\u2019s there already and reducing fossil fuel consumption rapidly now.\u201d<\/p>\n

Disney and his colleagues hope to explore how the non-native sequoias are affecting local trees and other wildlife. \u201cI\u2019m also really interested in whether they can reproduce here because, at the moment, all the sequoias that are here are planted.\u201d<\/p>\n

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