The produce outside the capitol building at Madison, WI, is donated to a food pantry.(Kelly Hafermann/Flickr) Chard is one of the many plants growing in the Montpelier, Vt. state house vegetable garden.Photo: Waldo Jaquith via FlickrThere's a new breed of urban agriculture germinating throughout the country, one whose seeds come from an unlikely source. Local government officials from Baltimore, Md., to Bainbridge Island, Wash. are plowing under the ubiquitous hydrangeas, petunias, daylilies, and turf grass around public buildings, and planting fruits and vegetables instead -- as well as in underutilized spaces in our parks, plazas, street medians, and even parking …