Gardens That Grow on Walls

Vertical gardens — which began as an experiment in 1988 by Patrick Blanc, a French botanist intent on creating a garden without dirt — are becoming increasingly popular at home. Avid and aspiring gardeners, frustrated with little outdoor space, are taking another look at their walls and noticing something new: more space. And a number of companies are selling ready-made systems and all-in-one kits for gardeners like Mr. Riley who want to do it themselves. (For those who prefer to leave it to the professionals, landscape designers can build vertical gardens for a hefty fee.)

In the last few years, companies that sell green wall supplies have seen a jump in sales. ELT, an Ontario company that specializes in green roofs, began selling living wall systems a little over three years ago and is now one of the biggest suppliers to the United States. Greg Garner, the company’s president, said that its green-wall sales have increased 300 percent since 2008. Four months ago, the company introduced a cheaper, lighter kit to make living walls accessible to the average gardener; prices start at about $40 for a one-square-foot panel.

http://www.nytimes.com/2010/05/06/garden/06vertical.html?ref=garden