The princess will be attending alongside many other members of the Royal family including the Earl and Countess of Wessex and the Duke and Duchess of Gloucester.
While the Queen was not included in Buckingham Palace’s announcement of the attendees, Her Majesty reportedly hopes to attend despite her mobility issues.
It is understood she will decide on the day whether she will join other members of the family.
At the event members of the Royal Family will be greeted by the President of the Royal Horticultural Society Keith Weed before touring the gardens.Â
There will be a special garden for the Queen’s Platinum Jubilee, featuring laser-cut steel silhouettes of Her Majesty.
This will be surrounded by 70 planted, terracotta pots – one for each year of her reign.
Beatrice, 33 and Eugenie, 31, daughters of Andrew and ex-wife Sarah Ferguson, occasionally attend public events as members of the royal family.
However, they are private citizens and each have their own careers.