The bees are buzzing, the Chelsea Pensioners are posing in their finest red coat tails and horticulture legend Monty Don is brushing shoulders with the Princess of Wales, Dame Judi Dench and Matthew Macfadyen among the foxgloves in the show gardens.
The world’s most prestigious flower show has always been the start of the summer calendar, but this year has seen it attract a particularly starry set. From feelgood causes to glam new sponsors, Katie Strick takes a look behind the gates on day one