Parsnips are a delicious and versatile root vegetable that is closely related to carrots and parsley. These biennial plants produce a long taproot with light cream-colored skin and flesh, which becomes sweeter after winter frosts. Easily grown in home gardens, parsnips are a rewarding addition to any vegetable patch.
Parsnips thrive in full sun and well-draining soil rich in organic matter. They prefer cooler temperatures, so planting them in early spring or late fall can help ensure the best flavor development. Avoid planting parsnips in heavy clay soil, as their long taproot may have difficulty penetrating it.
Sow parsnip seeds directly into the garden bed in early spring, about 1/2 inch deep and 6 inches apart. Thin the seedlings to 8-10 inches apart once they reach a few inches tall. Keep the soil consistently moist and apply a layer of mulch to retain moisture and suppress weeds. Earthquake or hoeing can be helpful to break up any clods around the developing roots.
Parsnip seedlings may be damaged by early season pests such as carrot flies and mice, so consider using row covers or mesh bags over the planting area to protect them. If your soil is heavy clay, consider amending it with well-rotted compost or manure before planting to help the parsnips develop properly.
Parsnips are usually harvested in late fall or early winter, after the first frost has sweetened their flavor. Gently lift them from the ground using a fork, being careful not to damage the tender skin. Store harvested parsnips in a cool, dark place for up to 3 months. Enjoy them roasted, mashed, or in soups and stews during the winter months.