Brooklyn Grange: World’s Largest Rooftop Farm Kicks Off Second Growing Season  

Inhabitat has a post on a rooftop farm in New York - Brooklyn Grange: World’s Largest Rooftop Farm Kicks Off Second Growing Season.

The second growing season is in full swing for the rooftop urban farmers at Brooklyn Grange. Located atop a six-story 1919 warehouse, the 40,000 square foot organic rooftop farm built by Bromley Caldari Architects is believe to be the largest of its kind in the world! The almost 1-acre farm is an oasis surrounded by little greenery and lots of concrete in Queens at 37-18 Northern Boulevard. After a successful first growing and selling season that began last spring, the farmers at Brooklyn Grange are continuing their production of organic produce that includes 40 varietals of juicy tomatoes, peppers, fennel, salad greens, kale, swiss chard, beans of all sorts and a variety of delicious root vegetables like beets, carrots, and radishes, as well as plenty of herbs. ...

Brooklyn Grange‘s organic produce is grown in 7.5” deep beds with Rooflite soil. Produced by Pennsylvania soil company Skyland, Rooflite is a lightweight soil composed of organic matter compost and small porous stones which break down to add trace minerals that are needed for the produce to grow into a healthy and mature state. The use of organic soil means that everything produced by Brooklyn Grange is sustainable and good for you. The farm had a nine-month growing season last year, and during the winter, they used cover-crops such as rye, buckwheat, vetch, and clove, resulting in a year-round production of organic goodness right in the heart of NYC.