Climate Chaos Hits Britain’s Blooms

As the UK swelters under another heatwave, hydrangeas are facing an existential crisis. These majestic shrubs, known for their vibrant blooms and ability to adapt to British soil, are struggling to survive in the south of England. The Royal Horticultural Society (RHS) is considering a drastic measure: relocating its prized hydrangea collection to the north of England, where conditions are expected to remain more favorable.

Britain’s changing climate is having far-reaching consequences for its flora and fauna. Rising temperatures and unpredictable weather patterns are making it increasingly difficult for plants to thrive in certain regions. RHS data shows that inquiries about drought and heat damage affecting hydrangeas have tripled since 2023, with the shrubs becoming the most frequently reported plant for hot-weather problems.

The RHS’s decision highlights the complexity of this issue. Hydrangeas are not just plants; they’re cultural icons symbolizing Britain’s rich horticultural heritage. The idea of moving them raises questions about preserving natural history in the face of climate change.

Other gardens and institutions across the country are grappling with the impact of climate change on their collections. Some have conducted studies into how plants fare under new conditions, with sobering results: even in ideal locations, plants can suffer damage from drought and heat. For example, a study at the Manchester garden at Bridgewater found that plants, even those in ideal conditions, were susceptible to heat damage.

Britain’s gardens will need to adapt to changing climate conditions. This may involve adopting a more selective approach to plant placement, moving high-maintenance species to cooler regions while leaving others to wither and die. Alternatively, gardeners may turn to more climate-resilient varieties, carefully cultivated to thrive in the changing conditions.

Guy Barter, the RHS’s chief horticulturist, notes that as the climate changes, bringing hotter drier summers, gardeners will have to be more selective about where they plant hydrangeas. This is not a new problem; Britain’s gardens have always been vulnerable to extreme weather events, but their frequency and intensity are increasing exponentially.

The RHS’s decision to relocate its hydrangea collection is a stark reminder that even our most beloved institutions cannot escape the impact of climate change. As the UK swelters under another heatwave, it’s clear that Britain’s flower power has never been more fragile than it is today.