Hollow Crown Parsnip
The classic parsnip variety producing long, wedge-shaped white roots with sweet, nutty flavor that intensifies after frost exposure.
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Meet Hollow Crown Parsnip
The classic parsnip variety producing long, wedge-shaped white roots with sweet, nutty flavor that intensifies after frost exposure. Plants need deeply worked, stone-free soil to produce straight, smooth roots up to 12 inches long. Use fresh seed each year as parsnip seeds lose viability quickly and germination is slow, taking two to three weeks. Leave roots in the ground through winter and harvest as needed, as cold converts starches to sugars.
When to plant Hollow Crown Parsnip
Always direct sow parsnips as they do not transplant well due to their long taproot. Use only fresh seed purchased for the current season, as parsnip seed viability drops dramatically after one year. Sow seeds half an inch deep in early to mid-spring. To speed germination, pre-soak seeds in warm water for 24 hours before sowing. Mark rows with quick-germinating radish seeds so you can identify parsnip rows before they emerge. Thin seedlings to four to six inches apart once they have their first true leaves.
Your Hollow Crown Parsnip Year
Composed for Zone 7 · typical seasons · frost passes Apr 2, returns Nov 1
Sow Hollow Crown Parsnip Mar – May, pick Jan, Oct – Dec. Set your climate below and every date on this plate re-times itself.
How to grow Hollow Crown Parsnip
Parsnips require patience and careful soil preparation for the best results. Prepare the bed by double-digging to at least 15 inches deep, removing all stones, clods, and debris that could cause roots to fork or become misshapen. Work in well-rotted compost but avoid fresh manure, which also causes forking. Sow seeds directly outdoors in early to mid-spring as soon as the soil can be worked, placing them half an inch deep and one inch apart in rows twelve inches apart.
Germination is notoriously slow, taking 14 to 28 days depending on soil temperature. Keep the soil consistently moist during this period. Some gardeners place a row cover or damp burlap over the bed to maintain moisture. Once seedlings emerge, thin to four to six inches apart. Parsnips grow slowly through summer but do not require heavy feeding. Water deeply during dry spells to prevent cracking and maintain steady root development.
The real magic happens in fall when freezing temperatures convert the root starches to sugars, dramatically improving flavor. Mulch the bed heavily after the first hard frost and harvest throughout winter by pulling back the mulch and lifting roots with a garden fork. In zones 2-5, harvest before the ground freezes solid or insulate with a thick straw mulch. Any roots left in spring will bolt and should be pulled before they become woody.
288 plants fit a 4 × 8 ft bed
Each Hollow Crown Parsnip wants 10 cm of elbow room. The planner keeps that spacing for you — every plant, every bed.
Hollow Crown Parsnip's best neighbours
Parsnips grow well alongside peas, which fix nitrogen in the soil, and lettuce, which can be interplanted between the slow-growing rows for efficient space use. Onions and garlic help repel carrot rust fly, the primary pest of parsnips. Radishes sown alongside mark the row and break the soil crust for emerging parsnip seedlings. Avoid planting near carrots, celery, or other umbellifers that share the same pests and diseases and compete for similar soil nutrients.
Peas belongs beside it. Carrot doesn't.
Old growers' knowledge, checked against Hollow Crown Parsnip's real companion table below — test any plant you're growing.
Related growing guides
Feed it well
Parsnips demand deeply cultivated, stone-free soil for straight root development. Sandy loam is ideal, but any well-drained soil works if prepared to sufficient depth. Incorporate well-rotted compost into the top 18 inches before planting, but never use fresh manure, which causes forking. A soil pH of 6.0 to 7.0 is optimal. Parsnips are light feeders and excessive nitrogen promotes leafy growth at the expense of roots. A single side-dressing of balanced fertilizer at midseason is sufficient.
Ideal Temperature
Hardiness Zone Compatibility
From seed to harvest, stage by stage
Seed Germination
Parsnip seeds are notoriously slow and erratic germinators — the single most challenging phase of growing this crop. Fresh seed is absolutely essential as parsnip seed viability drops sharply after just one year. Tiny seedlings emerge with narrow, grass-like cotyledons that are easily mistaken for weeds. Germination requires consistent soil moisture over 14-28 days and soil temperatures of at least 10°C (50°F).
Seedling Establishment
True leaves emerge with the characteristic compound, celery-like shape. Growth is slow initially as the plant prioritizes developing its deep taproot system. Seedlings are fragile and easily outcompeted by weeds during this phase. The crown of the root begins to swell just below the soil surface.
Vegetative Growth
Foliage grows vigorously through summer, building a lush canopy of compound leaves 45-60 cm tall. Below ground, the taproot elongates steadily downward into the soil, reaching 20-30 cm in length. The root thickens from the crown downward, developing the characteristic wedge shape. The plant stores energy as starch in the root throughout this period.
Root Maturation
The root reaches full size, typically 5-8 cm across at the shoulder and 25-35 cm long. Foliage begins to slow its growth as the plant channels remaining energy into the root. Starch accumulates heavily in the dense white flesh. The root is technically harvestable at this stage but has not yet developed its full sweetness.
Frost Sweetening and Harvest
After several hard frosts, starches in the root convert to sugars through a natural process triggered by near-freezing temperatures. This transformation gives parsnips their characteristic sweet, nutty flavor that distinguishes them from all other root vegetables. Roots can remain in the ground through winter in most climates, effectively using the garden as cold storage.
Spring Bolting (Second Year)
If roots are left in the ground past early spring, the biennial plant sends up a tall flowering stalk reaching 90-150 cm topped with flat umbels of small yellow-green flowers similar to Queen Anne's lace. Once bolting begins, the root becomes woody, fibrous, and inedible. The flowers attract beneficial insects and can be left to produce seed for replanting.
Use only fresh seed purchased the same season — parsnip seed older than one year has dramatically reduced germination rates. Sow thickly to compensate for irregular germination and cover with a thin layer of vermiculite to retain moisture. Lay a damp burlap cloth or wooden board over the row to prevent surface drying, checking daily and removing at the first sign of emergence.
Caring for Hollow Crown Parsnip month by month
What to do each month for your Hollow Crown Parsnip
July
You are hereFoliage reaches its maximum height of 45-60 cm. Continue regular watering, providing 2.5 cm per week in the absence of rain. Inspect foliage for parsnip canker, celery fly larvae, or carrot rust fly damage. Apply organic insecticidal soap if leaf miners are present.
Know exactly what to do in your garden — every month
One email at the start of each month: what to sow, plant, and tackle right now — for your Hollow Crown Parsnip and everything growing around it. Plus a short starter course that helps you dodge the classic mistakes.
- What to do, right now
- Matched to your season
- Starter course included
Harvesting Hollow Crown Parsnip
Parsnips can be harvested any time after they reach usable size, but flavor is vastly improved after several hard frosts. Use a garden fork inserted deeply beside the row to loosen soil before pulling, as the long taproots break easily. In mild climates, leave roots in the ground all winter and harvest as needed. Mulch heavily in colder zones to prevent the ground from freezing solid. Harvest all remaining roots by early spring before new top growth begins, as roots become woody once the plant bolts.
assuming you sow when the window opens — set your real date
Pick Hollow Crown Parsnip promptly and the plant keeps producing.
Storage & Preservation
Freshly harvested parsnips store in the refrigerator for two to four weeks in a perforated plastic bag. For longer storage, pack unwashed roots in damp sand in a cool root cellar at 32 to 40 degrees Fahrenheit, where they keep for four to six months. Parsnips freeze well when peeled, cubed, blanched for two minutes, and frozen in airtight bags. They can also be roasted and pureed before freezing. Dehydrated parsnip chips make a nutritious shelf-stable snack.
What goes wrong — and the fix
Carrot Rust Fly
PestRusty brown tunnels through the root surface, especially near the crown. Larvae leave frass-filled channels that cause secondary rot.
Parsnip Canker
DiseaseBrown, orange, or purple rotting patches on the root shoulders, often starting where the root meets the soil surface.
Celery Leaf Miner
PestBlister-like mines in the leaves where larvae tunnel between leaf surfaces. Heavy infestations reduce plant vigor and root size.
Powdery Mildew
DiseaseWhite powdery coating on leaves and stems, typically appearing in late summer. Affected leaves may yellow and die prematurely.
Troubleshooting Common Problems
Slow and erratic germination is the most frustrating issue for parsnip growers. Always use fresh seed less than one year old and maintain consistent soil moisture for the first month. Forked or misshapen roots result from rocky soil, fresh manure, or root damage during thinning. Canker on root shoulders is common in wet autumns and can be minimized by choosing resistant varieties and mounding soil over crowns. Roots left past early spring become woody and inedible once the plant bolts.
Growing Tips
- Always use fresh seed purchased the same season you plan to sow — this cannot be overstated. Parsnip seed viability drops below 50% after just one year of storage, and two-year-old seed is virtually useless. If you have leftover seed from last year, discard it and buy new.
- Prepare the soil deeply before sowing, working it to a depth of 30-45 cm and removing every stone, clod, and piece of debris. Parsnip roots fork, split, and become misshapen when they encounter any obstruction. Raised beds filled with sifted compost-rich soil produce the straightest roots.
- Be patient during germination — 14-28 days is completely normal and does not indicate failure. Keep the soil surface consistently moist during this entire period. Covering the row with a damp burlap cloth, wooden board, or floating row cover prevents surface crusting and drying that kills emerging seedlings.
- Sow radish seeds in the same row as a companion marker crop. Radishes germinate in 3-5 days, marking the row so you can weed around the slow-emerging parsnips. The radishes will be harvested long before the parsnips need the space.
- Do not transplant parsnips — the long taproot is easily damaged or kinked during transplanting, producing forked and stunted roots. Always direct sow in the final growing position. This is one of the few vegetables where direct sowing is truly non-negotiable.
- Wear gloves and long sleeves when working with parsnip foliage in sunny conditions. The leaves and stems contain furanocoumarins that cause painful blistering burns (phytophotodermatitis) when they contact skin that is then exposed to sunlight. The reaction can be severe and leave discoloration lasting months.
- Leave roots in the ground after the first hard frosts rather than harvesting immediately. The cold triggers enzymatic conversion of starch to sugar, dramatically improving flavor. Parsnips dug before frost are starchy and bland compared to frost-sweetened roots — this transformation is the entire point of growing parsnips.
- Mulch heavily with 15-20 cm of straw before the ground freezes solid to keep soil accessible for winter harvesting. Without mulch protection, frozen ground makes it impossible to dig roots until spring thaw, defeating the purpose of this excellent in-ground storage crop.
Pick your Hollow Crown Parsnip
Hollow Crown
The classic heirloom producing long, smooth, wedge-shaped roots up to 12 inches. Sweet, nutty flavor that improves dramatically after frost.
Gladiator
A hybrid with excellent canker resistance and smooth, white skin. Produces uniform roots with outstanding flavor and good storage qualities.
Albion
Modern variety with strong canker resistance and wedge-shaped roots. Smooth skin and fine-grained flesh make it reliable for heavier soils.
Tender and True
Long-rooted heirloom with excellent flavor and minimal core. Requires deeply prepared soil but rewards with large, tender roots.
Javelin
Slim, straight-rooted variety ideal for shallow or clay soils. Good canker resistance with sweet flavor after frost exposure.
Fresh parsnips sell for $3-6 per pound at grocery stores and farmers markets, with prices peaking in winter when demand is highest. A single 3-meter garden row produces 2.5-4 kg of roots from a seed packet costing $2-4, replacing $15-50 worth of store-bought parsnips. Because parsnips store exceptionally well in the ground through winter with no energy or infrastructure costs, the garden effectively serves as a free root cellar. Unlike most vegetables that require immediate harvesting and preservation, parsnips can be dug fresh from November through March, providing months of free produce with zero post-harvest effort.
Quick recipes
Honey-Roasted Parsnip Wedges
10 min prep + 35 min roastThe simplest and most popular way to enjoy Hollow Crown parsnips — chunky wedges roasted at high heat until the natural sugars caramelize into golden, crispy edges with a fluffy sweet interior. A drizzle of honey and fresh thyme elevates this humble root into something extraordinary.
6 ingredientsCreamy Parsnip and Apple Soup
15 min prep + 30 min cookA velvety winter soup that pairs the sweet nuttiness of frost-kissed parsnips with tart apple and warming spices. The natural creaminess of pureed parsnips means very little added cream is needed — the root does all the work to create a silky, luxurious texture.
10 ingredientsParsnip and Potato Mash with Brown Butter
10 min prep + 25 min cookA luxurious twist on classic mashed potato — swapping half the potatoes for parsnips adds a sweet, nutty complexity that transforms this side dish. Finished with brown butter and a grating of nutmeg, this is comfort food at its finest and a perfect match for roast meats and winter stews.
6 ingredientsCulinary Uses
Roasting is the ultimate preparation for parsnips, caramelizing their natural sugars into golden, crispy exteriors with creamy centers. Dice and add to hearty winter stews, soups, and pot roasts. Puree roasted parsnips with butter and cream for an elegant side dish. Make parsnip chips by thinly slicing and baking until crisp. Grate raw parsnip into slaws for a sweet, nutty crunch. They pair beautifully with honey, thyme, and brown butter.
What's inside
Health Benefits
- Outstanding source of dietary fiber at 4.9g per 100g, providing both soluble and insoluble fiber that supports digestive regularity, feeds beneficial gut microbiota, and helps maintain healthy cholesterol levels — a single large parsnip provides over 25% of the daily recommended fiber intake.
- Rich in folate (vitamin B9) essential for DNA synthesis, red blood cell formation, and neural tube development during pregnancy — parsnips provide 17% of the daily value per 100g, making them an important vegetable for women of childbearing age.
- Contains significant potassium at 375mg per 100g, supporting cardiovascular health by helping regulate blood pressure, counterbalancing dietary sodium, and maintaining proper heart rhythm and muscle function.
- Provides manganese (0.56mg per 100g, 24% DV), a trace mineral critical for bone health, wound healing, metabolism of carbohydrates and amino acids, and activation of the antioxidant enzyme superoxide dismutase.
- Contains polyacetylenes including falcarinol and falcarindiol, naturally occurring bioactive compounds that have demonstrated anti-inflammatory and cytotoxic effects against certain cancer cell lines in laboratory research — these compounds are concentrated in the outer layer of the root.
- Good source of vitamin C (17mg per 100g) and vitamin K (22.5mcg per 100g), supporting immune function, collagen synthesis, blood clotting, and bone metabolism — the combination of high fiber and moderate calorie density also makes parsnips supportive of healthy weight management.
Where Hollow Crown Parsnip comes from
The parsnip (Pastinaca sativa) is native to Eurasia, with its wild ancestor growing across a broad range from the Atlantic coast of Europe through the Caucasus and into Central Asia. The Romans cultivated parsnips extensively, though early historical references are complicated by the fact that Roman writers often used the same word — pastinaca — for both parsnips and carrots, making it difficult to distinguish which root they were describing. The Roman emperor Tiberius reportedly had parsnips imported from the Rhine frontier of Germania, where the colder climate produced sweeter roots.
Throughout the medieval period, the parsnip was arguably the most important root vegetable in northern Europe. Before the introduction of the potato from the Americas in the late 16th century and the refinement of sugar from cane and beet, parsnips filled both roles — they were the everyday starchy staple and one of the few sources of sweetness available to common people. Medieval cooks used parsnip in everything from soups and pottages to sweet fritters, pies, and even wine. The root was so central to the diet that it featured prominently in monastery gardens and manorial kitchen plots across England, France, and the Low Countries.
The Hollow Crown variety emerged in England in the early 19th century, with written records placing its cultivation at least as far back as the 1820s. It was developed through selective breeding for a smooth, tapered root with a distinctive hollow or indented crown where the leaves emerge. The variety quickly became the standard market parsnip in Victorian England due to its reliable shape, sweet flavor, and excellent storage qualities. English settlers brought Hollow Crown to North America, where it became equally popular in colonial and early American gardens. Despite the rise of the potato and the decline of parsnip's culinary prominence, Hollow Crown has endured as the benchmark parsnip variety for over two centuries, remaining the most widely grown cultivar in both home gardens and commercial production across the English-speaking world.
Hollow Crown Parsnip: did you know?
Fascinating facts about Hollow Crown Parsnip
Before the potato arrived in Europe from the Americas in the late 1500s, the parsnip was the primary starchy root vegetable across the continent — it held the same culinary role that potatoes occupy today, serving as the everyday carbohydrate in soups, stews, and roasts for centuries.
Hollow Crown Parsnip questions, answered
When should I plant Hollow Crown Parsnip?
What are good companion plants for Hollow Crown Parsnip?
What hardiness zones can Hollow Crown Parsnip grow in?
How much sun does Hollow Crown Parsnip need?
How far apart should I space Hollow Crown Parsnip?
What pests and diseases affect Hollow Crown Parsnip?
How do I store Hollow Crown Parsnip after harvest?
What are the best Hollow Crown Parsnip varieties to grow?
What soil does Hollow Crown Parsnip need?
Why didn't my parsnip seeds germinate?
Why are my parsnips forked and misshapen instead of smooth and straight?
Are parsnips safe to eat if the tops have turned brown and died back?
Can I get a skin rash from parsnip plants?
How long can I leave parsnips in the ground before harvesting?
Why do my parsnips taste bland and starchy instead of sweet?
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Everything that makes Hollow Crown Parsnip fiddly — the timing, the spacing, the companions, the harvest window — is exactly what PlotMyGarden handles for you, for every plant in your garden.
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Set your location once. Get sow, feed and harvest dates built around your real last-frost date and live forecast — no more guessing from a generic seed packet.
From the “When to plant” sectionDrag-and-drop bed planner
Design beds on a grid. Every plant snaps to its proper spacing, and you can see your whole season laid out before you spend a cent on seed.
From the “Growing guide” sectionCompanion conflicts, caught early
200+ good-and-bad pairings checked live as you plant — so a season-wrecking mistake never makes it into the ground.
From the “Companions” sectionReminders you'll actually act on
“Water the beans.” “Pick today before it turns.” Timely, specific, and tied to the plants you're really growing.
From the “Harvest” sectionSuccession, scheduled
Want a harvest for six weeks, not six days? It spaces your sowings automatically and reminds you when each new block is due.
From the “When to plant” sectionA record that gets smarter
Every harvest you log teaches it your garden. Next year's plan starts from what actually worked in your soil, not a textbook's.
From the “Overview” sectionPlant these alongside Hollow Crown Parsnip
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