Modern Farmer recently reported that the largest rooftop organic garden in the lineup belongs to Fenway Park.
Fenway Has Largest Organic Rooftop Garden
Runner up kudos go to the San Diego Padres and San Francisco Giants and Colorado Rockies. But, at 4,320 square feet it appears Fenway has so far hit it the farthest.
Since California and water have been much on my mind as of late, I have to point out 2 out of 4 of the Majors rooftop gardens are in California--go figure.