The leafy greens might be on their way out but the farmers market is still bustling! To expect the same food availability all year round is not only unrealistic (and environmentally backward) its also BORING! Farmers markets and/or becoming part of a CSA (community supported agriculture) is a great way to know what your part of the planet is naturally producing right now (not to mention the freshest way to eat.)
Green markets aren't just for bunnies either, there's farm raised organic meats, seafood and baked goods, better than in any supermarket.
my CSA, pictured above,
Paisley Farms, Upstate Farms
my local farmers market is McCarren Park, BK
google for the one closest to you