The story comes out of Associated Press, but I came across it first on Forbes:

High prices at the pump and the produce aisle have sent home gardeners into their yards with a mission: Grow-it-yourself dining. Sales of vegetable seeds, tomato transplants and fruit trees are soaring as enterprising planters grow their own food.
– As economy stumbles, gardeners turn to yard-grown produce, Ellen Simon, AP

One of Brooklyn’s own gets a quote:

GRDN, a shop in the New York City borough of Brooklyn [specifically, Boerum Hill], is getting a lot of questions about which edible plants can be grown on a fire escape, said staffer Cindy Birkhead. “There’s lots of interest in herbs, blueberry bushes, tomato plants, any transplants or shrubs that bear edible fruit.”