Following a visit to the plush rooms, groups will tour the garden, to include a talk on the history and use of the garden.
The 45-minute tour will take in the famous herbaceous border, the summer house, rose garden and palace tennis court where King George VI and Fred Perry rallied in the 1930s.
"For over 200 years the garden has been used by the royal family for celebratory events and official entertaining, including the Queen's annual garden parties," said a palace representative.
"It was the setting for the Golden Jubilee concerts in 2002 and for the children's party to mark the Queen's 80th birthday in 2006."
Groups of up to 25 people will be able to congregate in a new garden café on the palace's west terrace. The combined visit and tour from 28 August to 1 October costs up to £23.
Subscribe to Horticulture Week for more news, more in-depth features and more technical and market info.