Serious Eats: Talk

What vegetable can you not find at a farmers market?

I have a second business(www.goodoutlookfarm.com) where I grow vegetables for a restaurant. I try to offer things that most full time farmers don't want to grow to give me a little edge. I grow ginger, crosnes, sunchokes, sweet potatoes, limas, favas as well as some regular things for the area.
Any other ideas/wanted veges that I may be missing in the northeast? Thanks for reading and any ideas?

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