How to Grow Whitbread
Wikimedia Commons
Whitbread
Apium graveolens var. rapaceum
vegetableWhitbread is a celery root (celeriac) variety prized for its large, smooth white bulbous roots rather than leafy stems. It develops a mild, nutty celery flavor and is excellent roasted, mashed, or used in soups. This heirloom variety produces clean white roots with minimal side roots, making it highly marketable and kitchen-friendly.
When should you plant Whitbread in your zone?
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Example Whitbread timeline · Pittsburgh, PA (Zone 6b)
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Plant Whitbread
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Whitbread
Around Aug 15≈ 120 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Whitbread dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 4-8; can be grown in zones 3-9 with proper timing
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Seedling
3-4 weeksTiny seedlings emerge slowly with threadlike first leaves. Plants are delicate and require consistent warmth and moisture.
Start seeds indoors 10-12 weeks before last frost. Keep soil at 60-70°F. Provide bright light to prevent leggy growth. Thin seedlings if sown directly.
Transplant & Early Growth
3-4 weeksSeedlings develop true leaves and form a small rosette of feathery foliage. Ready for hardening off and transplanting outdoors.
Harden off for 7-10 days before planting. Space 6-8 inches apart in enriched soil. Begin light fertilization every 2 weeks.
Vegetative Growth
6-8 weeksFeathery green foliage develops above ground while root bulb begins enlarging below. Plant establishes strong leaf canopy.
Maintain consistent moisture. Mulch around plants to retain moisture and regulate soil temperature. Remove lower yellowing leaves. Feed every 2-3 weeks with balanced or phosphorus-rich fertilizer.
Root Bulb Development
6-10 weeksThe swollen root becomes noticeably larger and rounder. The white root bulb expands to 4-6 inches in diameter. Foliage remains green and healthy.
Keep soil consistently moist. Ensure plants are not crowded. Gently remove soil from around the crown to expose the bulb slightly as it grows. Continue feeding. Watch for crown rot in overly wet conditions.
Maturity & Harvest
Ready to harvestRoot bulb reaches full size (4-6 inches diameter) with smooth, white skin. Foliage may begin to yellow slightly as plant reaches peak.
Harvest before first hard frost in cold climates. Loosen soil gently before harvesting to avoid bruising the bulb. For storage, cure roots in cool, humid conditions for 1-2 weeks.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Remove affected leaves; use row covers on seedlings; spray with spinosad or neem oil if severe
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Use row covers until plants are established; mulch to deter egg-laying; practice crop rotation
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and
Hand-pick; use beer traps; apply copper tape around planting areas; encourage beneficial predators
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Spray with strong water stream; use insecticidal soap; introduce ladybugs; plant catnip or garlic nearby
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Ensure good air circulation; avoid overhead watering; remove infected foliage; apply copper fungicide if needed
Uses
Roasted and mashed root vegetable
CulinaryThe sweet, nutty white root is excellent roasted, mashed as a side dish, or pureed into creamy soups. It's a traditional European vegetable used in celeriac remoulade and winter broths. [source]
Raw in salads and slaws
CulinaryYoung, tender roots can be grated or julienned raw into coleslaws and salads for a crisp, mild celery flavor with delicate sweetness. [source]
Stock and broth base
CulinaryThe root adds depth and umami to homemade stocks, broths, and stews, similar to celery but with a more subtle, refined flavor. [source]
Digestive and nutritional support
MedicinalCelery root is rich in inulin, vitamins K and C, and minerals, traditionally used in herbal medicine to support digestion and provide anti-inflammatory benefits. [source]
Winter storage vegetable
HouseholdWhitbread's excellent storage qualities make it ideal for root cellars and long-term preservation, providing fresh vegetables well into winter months. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Harvest from late fall through early winter when roots are 4-6 inches in diameter (typically 120-150 days after transplanting). Gently loosen soil with a fork and pull the entire plant. Cut off foliage, leaving ½ inch of stem. Roots store well in cool (32-40°F), humid conditions for 4-6 months. Can be harvested at smaller sizes (3-4 inches) for tenderness.
Fun Facts
- 🌱 Whitbread is an heirloom variety that has been grown since at least the 19th century, prized by European gardeners for its exceptionally clean, round, white roots.
- 🌱 Unlike regular celery (which produces stringy leafy stalks), celeriac produces an edible underground bulb and is botanically classified as a root vegetable despite being in the Apium genus.
- 🌱 The feathery foliage of celery root is fully edible and can be used fresh in salads or dried as a flavoring herb, similar to parsley, making it a zero-waste vegetable.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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