Raw parsnips on green cloth atop a slate backdrop. - Olga Yastremska/Getty Images Like many root vegetables, parsnips tend to last for a while before they go bad. However, that does not mean that they ...

Parsnips develop their best flavor after the first frost, so harvest them in early winter before they start regrowing in spring. Wear gloves when digging them up, as parsnip foliage can irritate skin.