It's the annual event that was a favourite of the late Queen and always attracts a flurry of royal guests.
So it's no surprise that this year's Chelsea Flower Show has seen senior royals including King Charles, Queen Camilla and the Princess of Wales all attending.
However, royal insiders are reportedly 'alarmed' that the monarch's first visit to the show since becoming King appeared to be eclipsed by his daughter-in-law Kate.