George rates his mum's garden in adorable new video

Prince George has given his mum's garden display at the Chelsea Flower Show a surprise score in an adorable new video released on the Kensington Royal Instagram page.

In the video, George, five, is seen swinging in front of his father Prince William when William asks him what he thinks of his mum, Kate Middleton's effort.

George proceeds to give it a score out of 10, handing his mum a whopping 20 for her 'Back to Nature' creation.

William says, "That's pretty good, I think Mummy's done well."

Kate adds, "Wow, how amazing is that?"

Photos and videos of the Cambridge children playing in the garden have been released this week, ahead of the official opening on Monday night.