According to well-placed royal sources, the future king regularly enjoys picnics in the gardens with George and has even bought him a tea set, complete with plastic cups, to play with.
The little prince, who is third in line to the throne, is said to be particularly taken with the spectacular treehouse his grandfather had built for William and Harry.
Hidden away in an area of the garden known as The Stumpery (so-called because there are layers upon layers of old tree stumps and logs) it was designed by William Bertram for the then five and three-year-old princes.
Mr Bertram asked to interview the boys about what they wanted and William told him: ‘I want it to be as high as possible so I can get away from everyone and I want a rope ladder which I can pull up so no-one can get at me.’
The treehouse – named Hollyrood House after the Queen’s palace in Scotland, but also because it was originally built in a holly bush – was finally installed just in time for William’s seventh birthday in 1989.
Charles has owned Highgrove House since 1980, having bought it from Maurice Macmillan, a Conservative MP and son of the former Prime Minister Harold Macmillan Click link for full post from The Daily Mail.