I always saw farming as more white than green , mostly because the farm is itself an artificial environment. Also, because the only two real roads to a sedentary civilization are farming and fishing.
The card I don't get, in the reverse flavor, is Fasting . So we eat spells? And we gain life by starving ourselves? Um, what? The time I fasted, the "what's going on" part was more along the lines of Necropotence , mechanically speaking, TBH.