Britain's Prince William and Harry will mark the 20th anniversary of their mother's death with a memorial garden.

Prince William and Harry

Prince William and Harry

The handsome royals will commemorate the passing of their mum Princess Diana, who died in a car crash in 1997, by planting a garden of blooms at Kensington Palace in London next year to mark two decades since she was sadly taken.

A Palace source told HELLO! magazine: "No tribute to Princess Diana would be given the go-ahead without the princes' approval."

And it's believed The Historic Royal Palaces - the charity that looks after Kensington Palace - has reportedly already assembled a team to begin planning the project.

Meanwhile, Harry, 31, recently admitted his charity work has been inspired by his beloved mother and he will continue to do all he can to follow in Diana's footsteps.

He said recently: "We will do everything we can to make sure that she's never forgotten and carry on all the special gifts, as such, that she had and that she portrayed while she was alive. I hope that a lot of my mother's talents are shown in a lot of the work that I do."