The Chelsea Flower Show, organised by the Royal Horticultural Society, has in recent years become increasingly focused on sustainable development and biodiversity
Early springs, droughts and floods are influencing this year's Chelsea Flower Show, which is keener than ever to reflect the changing climate and cut its own carbon footprint.
The annual exhibition of horticultural excellence and innovation opens to the public in west London on Tuesday, with more than 150,000 visitors expected.