Giant redwoods, the world's largest trees, are thriving in the UK, surpassing their native numbers in California. Introduced by the Victorians as a symbol of botanical prestige, there are an estimated 500,000 giant redwoods in the UK, compared to California's 80,000. While not yet reaching the heights of their American counterparts - the tallest in the UK measures 54.87m compared to California's 90m - they have the potential to grow taller over time, as they can live for over 2,000 years. When researchers conducted a study on these trees, using laser scanning to measure their growth, they found they were growing at a similar rate to those in Sierra Nevada and adapting well to the UK climate. While the giant redwoods face climate change threats in California, they may find a more hospitable environment in the UK. However, despite their success, they are not likely to dominate native forests, as they require specific conditions for reproduction.