Fiddlehead ferns are harvested only in certain regional areas and only in the Spring. They're most commonly found in the Northeast and the Great Lakes states where the ferns grow in wet forests. Each spring when the snow melts, the ferns push their way up through the forest floor, uncurling slowly. Just before they uncurl is when they are harvested. Tender and with a taste that is often compared to that of a cross between a green bean and asparagus, they can be sautéed or fried.