Prince Harry is "incredibly involved" with his garden for the RHS Chelsea Flower Show, which opens later this month.
The prince's charity, Sentebale - which supports children in the African nation of Lesotho - has commissioned Jinny Blom to create a specially-themed space at the annual horticultural event and Harry has had full approval of the designs.
Blom said: "He's incredibly involved; I've met him once.
"We had a fantastic day talking about this. I took a model of the garden round to show him.
"We emailed the drawings to him when he was in Afghanistan and he kept wanting to see more. He's passionately interested in the garden and not at all remote. He was very respectful of the fact that the design was my job."
Harry's father Prince Charles is known to be a gardening fan, going as far as to talk to his plants, and while Blom says the younger prince is equally enthusiastic, she is unsure whether he will take his interest further because of his job in the Army.
She told the Daily Telegraph: "He's never in one place for very long and you need to be reasonably static to get into horticulture.
"Come to think of it, I don't even know if he has his own garden."
The RHS Chelsea Flower show runs from 21-25 May. Tickets here.