Britain's Queen Elizabeth II (Center L) and her grandson Britain's Prince Harry (Center R) tour the garden exhibits at the 2015 Chelsea Flower Show in London


Britain's Queen Elizabeth II smiles as she is shown the garden exhibits at the 2015 Chelsea Flower Show in London


Britain's Queen Elizabeth II (C) is shown the garden exhibits at the 2015 Chelsea Flower Show in London


Britain's Queen Elizabeth II, Britain's Prince Charles, Prince of Wales and Britain's Camilla, Duchess of Cornwall tour the exhibits at the 2015 Chelsea Flower Show in London