LONDON, ENGLAND - MAY 18: Prince Charles, Prince Of Wales and Prince Harry attend the annual Chelsea Flower show at Royal Hospital Chelsea on May 18, 2015 in London, England. (Photo by Stuart C. Wilson - WPA Pool / Getty Images)
LONDON, ENGLAND - MAY 18: Prince Charles, Prince Of Wales and Prince Harry attend the annual Chelsea Flower show at Royal Hospital Chelsea on May 18, 2015 in London, England. (Photo by Stuart C. Wilson - WPA Pool / Getty Images)