The Prince of Wales revealed his green fingers during a visit to a sheep farm in Yorkshire today.
Charles was being shown around a gardening tool workshop in the North York Moors when he showed interest in a new-style garden fork.
He told staff at Hill Top Farm in Spaunton: "I'm going to have to buy one of these."
After it was suggested he probably did not do a lot of gardening himself, Charles replied: "You'd be surprised."
The garden fork, made by Lazy Dog Tools on the farm premises, was later presented to the Prince by farm owner Philip Trevelyan.
Charles was visiting North Yorkshire with farmers and business leaders as part of his Business in the Community programme.
Swaledale sheep looked on in bemusement as the Prince was shown around the fields of the farm, with views to the surrounding moors.
Charles donned black wellies and a camel-coloured coat for the bracing walk.
He also visited the farm's organic flour mill, which provides ingredients to Betty's tea shop in Harrogate.
Master baker Robin Osburn presented Charles with a cob loaf at the mill.
Speaking afterwards, Mr Osburn said: "He's come to improve links between local farms like this one and heads of businesses like Betty's.
"It's really good that you can make a loaf of bread that is grown locally from a local farm."
He added: "We've developed this loaf especially from flour made here and it is a real honour to present it to the Prince."
The mill, which was opened at Hill Top Farm in 2006, uses grains from several farms in the area to produce flour.
Natalie Warriner MBE, chairman of Ryedale District Council, said Charles had always been interested in the farm's organic food production.
"This farm is the only real organic place in the area," she said.
"Farming of any sort is very hard anyway and to stick with it because of your principles is something to be commended."
The Prince left his gardening fork and cob loaf in a safe place before joining delegates from the Seeing Is Believing programme for a meeting on sustainable hill farming.
The scheme invites senior business leaders to see for themselves how businesses can play a role in tackling Britain's most pressing social issues.