Harry, 34, revealed that Charles was keen to "step up and be that support", according to a transcript released by the UK's public service broadcaster.
LONDON-Prince Charles has especially strong views on many things: plastic pollution, modern architecture, organic farming, and even the plight of the Patagonian toothfish.
"I'm about to have another grandchild, actually".
While he did note the arrival of Prince Harry's child, he and his wife, Camilla, seem to be the most wonderful grandparents to the three grandchildren he already has; Prince George, Princess Charlotte and Prince Louis. I'm not that stupid, I do realise that it is a separate exercise being sovereign. "So of course I understand entirely how that should operate".
"As many of you know so well, the eight million tons of plastic that enter the sea every year - through our own doing I might add - is now nearly ubiquitous", he continued.
He said: "If it's meddling to worry about the inner cities as I did 40 years ago, then if that's meddling I'm proud of it". "He will get down on his knees and crawl about with them for hours, you know, making amusing noises and laughing, and my grandchildren adore him, absolutely adore him".
In the interview, which took place in the garden at Highgrove, Prince Charles spoke about how he had transformed the piece of heaven. "When he's there, he's brilliant, but we need him there as much as possible".
Camilla, Duchess of Cornwall also heard it for the first time after Ghanaian comedian Clemento Suarez drew her attention to the tough immigration policies imposed on Ghanaians by the United Kingdom that seek to extort funds from visa applicants.
Another pupil added: "She said that she hadn't thought of one as it was still quite early".
" So overall I think it was a very interesting conversation and some traditional leaders like the Ooni of Ife talked about this program on youth empowerment."