One of the first things to hit the market in the spring are overwintered greens. They're planted in the fall and allowed grow until they set up roots. Then they're covered to protect against the extreme cold and will go dormant until the temperatures pick back up around this time of year. What's harvested is a heartier green vegetable.  

Amelia Tarpey is the Program and Publicity Manger for GrowNYC Greenmarkets. She said right now at local farm stands, overwintered greens range from $4 to $6 a bunch.