THERE'S a backyard gardening revolution going on as people reject store-bought fruit and vegetables, gardening guru Colin Campbell says.
Speaking at the Gardening Australia Expo in Brisbane, the ABC-TV presenter said people were growing food at home because of concerns about health, cost and the carbon footprint of produce.
"People are concerned about what they're getting," Mr Campbell said.
"They want to grow things that are fresh.
"This carbon footprint that people talk about when you transport vegetables from one end of the country to the other, by the time it gets to you it's gone through the transport system, the marketing system, the supermarket system.
"Backyard gardening is wonderful for kids, too.
"A lot 'of kids today think that the vegetables materialise on a supermarket shelf." Mr Campbell said he grew up in an era when people grew their own vegetables.
He said a worldwide survey of garden bloggers was topped by people's concerns about growing their own vegetables, and secondly, growing them organically.
"That was way ahead of waterwise gardening and everything else," he said.