How to Grow Parsnips in New Hampshire

Growing parsnips can be a rewarding endeavor, especially for New Hampshire gardeners looking to expand their vegetable repertoire. This nutrient-rich root vegetable is known for its sweet, nutty flavor and versatility in the kitchen. In this comprehensive guide, we will explore the best practices for growing parsnips in the unique climate of New Hampshire, from selecting the right variety to harvesting your crop.

Understanding Parsnips

Parsnips (Pastinaca sativa) are biennial plants that are typically grown as annuals for their edible taproots. They belong to the Apiaceae family, which includes carrots, celery, and parsley. Parsnips thrive in cooler climates and are usually planted in early spring or late summer. Their flavor is often enhanced after a frost, making them an excellent choice for fall and winter harvesting.

Choosing the Right Variety

When selecting parsnip seeds, opt for varieties that are well-suited for New Hampshire’s growing conditions. Some popular choices include:

• Hollow Crown: This variety is known for its high yield and resistance to disease. It has a sweet flavor and smooth texture.
• Lancer: A newer variety that is fast-growing and produces long, slender roots.
• Javelin: This variety is resistant to canker and offers a high-quality root with excellent flavor.

Choosing seeds from reputable sources ensures that you receive healthy seeds that are well-adapted to your local growing conditions.

Preparing Your Soil

Parsnips thrive in well-drained, loose soil with a pH between 6.0 and 7.0. Preparing your soil properly is crucial for healthy growth.

Soil Testing

Start by testing your soil to determine its pH and nutrient levels. Soil test kits are available at local garden centers or through cooperative extension services. Based on the results:

• Amend the Soil: If your soil is too acidic, add lime to raise the pH. Conversely, if it’s too alkaline, you may need to add sulfur to lower it.
• Add Organic Matter: Incorporating compost or well-rotted manure will not only improve soil structure but also provide essential nutrients.

Tilling

Loosen the soil to a depth of at least 12 inches using a garden fork or tiller. This will help prevent the parsnip roots from becoming stunted or forked due to compacted soil.

Planting Parsnips

Timing

In New Hampshire, parsnips can be planted either in early spring (April) or late summer (July). Early spring planting allows for a fall harvest, while late summer planting can lead to a winter harvest where roots develop improved sweetness.

Seed Sowing

1. Row Spacing: Sow seeds in rows about 18 inches apart.
2. Seed Depth: Plant seeds about 1/2 inch deep.
3. Thinning: Once seedlings emerge (in about 2-4 weeks), thin them to about 6 inches apart to allow adequate space for root development.

Watering

Parsnip seeds require consistent moisture during germination, so ensure the soil remains damp but not waterlogged. Once established, parsnips can tolerate some drought but will benefit from regular watering during dry spells.

Caring for Your Parsnip Crop

Weeding

Regular weeding is essential during the early stages of growth as parsnip seedlings can be easily overshadowed by weeds. Use mulch around your plants to suppress weed growth while retaining moisture.

Fertilization

Parsnips do not require heavy fertilization; however, applying a balanced fertilizer at planting can promote healthy growth. Follow up with additional compost during mid-season as necessary.

Pest and Disease Management

While parsnips are relatively pest-resistant, keep an eye out for:

• Carrot Rust Fly: The larvae can damage roots; plant barriers or insect netting may help deter them.
• Canker: This fungal disease thrives in overly wet conditions; ensure proper spacing and drainage to minimize risk.

Harvesting Parsnips

Parsnips are typically ready for harvest 120-180 days after planting. The best time to harvest is after the first frost when they become sweeter.

Signs of Maturity

1. Root Size: Look for roots that are at least 1 inch in diameter.
2. Top Growth: The foliage should be green and healthy-looking.

Harvesting Technique

1. Gently loosen the soil around the base of each plant using a spade fork.
2. Carefully lift each root out of the ground without damaging it.
3. Brush off excess dirt but avoid washing them until ready to use to prevent rot.

Storing Parsnips

Parsnips can be stored similarly to carrots:

• Remove any damaged tops before storing.
• Store them in a cool, dark place with high humidity—ideal conditions might include a root cellar or refrigerator.
• If necessary, parsnips can also be frozen after blanching to preserve their flavor and texture.

Culinary Uses

Parsnips are incredibly versatile in cooking:

• Roasting: Cut them into wedges, toss with olive oil, salt, and pepper, then roast until golden brown.
• Soups & Stews: Add diced parsnips to soups and stews for a sweet depth of flavor.
• Mashed: Combine cooked parsnips with potatoes for a delicious mash.

Conclusion

Growing parsnips in New Hampshire can be both enjoyable and fruitful if you follow these guidelines. With proper preparation, care, and attention to timing, your garden can yield an abundant crop of this underrated vegetable. Whether you’re enjoying them roasted or blended into a comforting soup, homegrown parsnips add nutrition and flavor to your meals throughout the colder months. Happy gardening!