Since the Coronation year, the Queen is thought to have missed 10 Chelsea Flower Shows, according to the RHS, most recently in 2005 when she was on a visit to Canada.
They will tour the gardens and see displays including the RHS Queen’s Green Canopy Garden, created to highlight the importance of trees and woodlands to the environment.
It goes alongside a tree planting project celebrating Her Majesty’s Platinum Jubilee next Summer, and coined the “tree-bilee” by the Prince of Wales.
They will also visit the Guide Dogs’ 90th Anniversary Garden, and attend a private reception.
Last year, the Chelsea Flower Show was cancelled for the first time since the Second World War, with the Queen instead sending a virtual message for the RHS’s online festival.