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Celeriac Seeds – Giant Prague Celeriac

Seed packet & garden essentials

What to know before you plant

Open complete growing & care facts
500 minimum seeds per packet
  • Maturity100-109 Days
  • Growth habitClumping/Tufted · Biennial · 19–24 in tall
  • Germination7–14 days · 60–75 °F
  • SunFull sun
  • Spacingspace 12 in · rows 24 in
  • Water needsModerate
  • SoilLoamy · pH 6.0–6.5
  • Planting seasonSpring/Fall · blooms Spring · Hardy
  • Seed typeOpen-Pollinated (OP) · Non-GMO
$200 USD

Pickup available at Bertie County Seeds

Usually ready in 2-4 days

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Triple-tested seed qualityRegular quality and germination checks support every packet.

We regularly test seed quality and germination as lots move through storage and packing. We stand behind the seed we send and want customers to contact us when a packet does not perform as reasonably expected.

1-year seed warrantyCoverage begins on the date of purchase.

When properly stored, planted, and cared for, we guarantee reasonable germination and true-to-type growth for one year from the date of purchase. Conditions outside our control—including extreme weather, pests, unsuitable storage, and gardener error—are excluded. Contact us when something is not right so we can review the situation and work toward a replacement, refund, or another fair resolution.

Non-GMO / BE seed policyWe do not buy or sell genetically engineered or bioengineered seed.

Every seed variety we sell is non-GMO.

USDA’s National Bioengineered Food Disclosure Standard defines bioengineered foods as containing detectable genetic material modified through in vitro recombinant DNA methods in ways not achievable through conventional breeding or found in nature.

  • Hybrid means parent lines were conventionally crossed; hybrid does not mean GMO.
  • Heirloom and open-pollinated describe how a variety is maintained and reproduced.
  • Organic certification is separate and is shown only when verified for the individual product.
Packed in Colerain, North CarolinaPrepared in our seed room for gardens across the country.

Seeds are packed and shipped from Colerain, North Carolina. Our packets use forestry-certified paper, and we use recyclable paper mailers where appropriate. AONSK is also a 1% for the Planet partner while continuing to reduce waste in packing and fulfillment.

Seed success profile

What to expect when starting this seed

Rules-based · no AI
Germination difficulty Typical seed-starting care
Germination speed
Typical — usually 7–21 days
Is this seed a good match for your experience?
Expected germination
7–14
Germination temperature
60–75 °F
Starting method
Cataloged for indoor starting or transplanting; follow the hardening-off guidance.
1 Beginner-friendly 2 One extra step 3 Some experience helpful 4 Patient growers 5 Advanced propagation

This deterministic profile uses recorded product facts; it is not Artificial Intelligence and is not a guarantee. Seed age, storage, sowing depth, moisture, temperature, light, local conditions, and aftercare can all affect results. This page is using a cautious rules-based estimate until the individual profile is reviewed.

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Open the detailed garden-fit planner Deterministic rules · no Artificial Intelligence · no live weather service

Root or allium seed grower’s field guide

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Garden-fit planning for this seed

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Check soil depth, texture, direct-sowing conditions, moisture, thinning, and season timing.

Rules-based · no AI
Questions for this root or allium seed
Seed-starting fit and patience

About this variety

Celeriac Seeds – Giant Prague Celeriac

Giant Prague celeriac seeds produce a classic heirloom root celery prized for large, knobby roots, creamy ivory flesh, and a mild celery flavor that deepens with cooking. This old-world variety has long been valued in European kitchens for its reliability, storage quality, and rich culinary versatility.

Plants grown from Giant Prague celeriac seeds form sturdy plants 12–18 inches tall and require a long, cool growing season, maturing in approximately 120–179 days. The rounded roots develop dense, aromatic flesh that becomes especially smooth and flavorful when roasted, simmered, or puréed. Roots store exceptionally well through winter when properly cured.

Giant Prague celeriac seeds are ideal for soups, stews, gratins, roasts, and traditional root vegetable dishes. The flavor is subtle and savory rather than sharp, making it well suited for both simple preparations and refined cooking.

An heirloom originating in the Czech Republic in the 19th century, Giant Prague celeriac seeds remain a standard for growers seeking dependable yields, excellent storage, and classic celeriac flavor from garden to table.

Every recorded growing detail

Complete growing & care facts

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Plant identity

Minimum seed count 500 seeds
Seed product profile Root vegetable
Scientific name Apium graveolens var. rapaceum
Also known as Celeriac, Celeriac Seeds – Giant Prague Celeriac
Life cycle Biennial
Botanical family Apiaceae
Reproductive type Open-Pollinated (OP)
Heritage qualifiers Non-GMO
Native to the United States Domesticated Plant
Domestication note Mediterranean Basin

Timing and climate

Days to maturity 100-109 Days
Germination 7–14 Days
Germination temperature 60–75 °F
Planting season Spring/Fall
Bloom season Spring
Frost tolerance Hardy
Sunlight Full sun
Water needs Moderate

Site, soil, and space

Soil type Loamy
Preferred soil pH 6.0–6.5
Seed depth 1/4 in
Plant spacing 12 in
Row spacing 24 in
Mature height 19–24 in
Growth habit Clumping/Tufted
Suitable growing locations In-ground bed, Raised bed, Greenhouse, High Tunnel, Community garden
How to sow and plantPreparation, sowing depth, germination, timing, and early care
How to sow and plant Celeriac: plant in prepared, well-drained soil after the recommended seasonal window for your area. Keep the seedbed evenly moist during germination, thin seedlings to the listed spacing, and mulch established plants to conserve soil moisture.
How to grow this varietyWater, light, support, site care, and variety-specific guidance
How to grow Celeriac: choose a site with the listed sunlight and soil requirements. Water consistently, avoid overcrowding, and monitor plants for pests, disease, and nutrient stress. Harvest at the proper stage for best flavor and seed quality.
Open additional practical growing tips
Additional tips for Celeriac: succession plant when appropriate, label varieties clearly, and keep good garden notes on germination, vigor, flavor, and harvest timing so you can compare varieties season to season.
Harvest, use, and save seedWays to use the crop, harvest expectations, storage, and seed-saving guidance

Ways to use and enjoy

Uses and benefits of Celeriac: grow for home gardens, seedkeeping, fresh harvests, culinary use, and biodiversity in the garden. Exact use depends on the variety and harvest stage.

Seed saving

Seed saving for Celeriac: select healthy, true-to-type plants, allow seed to mature fully before harvest, dry seed thoroughly, and store in a cool, dry, labeled container. Isolate varieties as needed to prevent unwanted crossing.
Common problems and gardener questionsTroubleshooting, pests, disease pressure, and practical answers

Common pests and problems

Common pests and problems for Celeriac: monitor for chewing insects, sap-sucking insects, fungal leaf spots, damping off, poor germination from cold or dry soil, and stress from inconsistent watering. Use crop rotation, spacing, mulch, and good airflow to reduce pressure.

Questions gardeners ask

Frequently Asked Questions — Celeriac

Q: When should I plant Celeriac?
A: Follow the planting season listed on this product page and adjust for your local frost dates.

Q: How deep should I sow the seeds?
A: Use the seed depth listed in the growing facts.

Q: Can I save seed from this variety?
A: Open-pollinated varieties can generally be saved when properly isolated and selected; hybrids may not grow true to type.
History, provenance, and cultural contextBotanical identity, documented history, and relationships surrounding the variety

Scientific name: Apium graveolens var. rapaceum

Celeriac Seeds – Giant Prague Celeriac belongs to a plant lineage long associated with Mediterranean and Old World garden agriculture. It was selected over generations for kitchen, market, ornamental, or herbal value and remains useful in modern home gardens.

Soil and site planning

Prepare the root zone for Celeriac Seeds – Giant Prague Celeriac

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Recorded soil typeLoamy
Recorded pH range6.0–6.5
Water needsModerate
LightFull sun

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Compare your report with this product's listed pH target: 6.0–6.5.

This tool interprets values you enter; it does not replace laboratory or Cooperative Extension amendment rates. Soil test methods and nutrient recommendations vary by region.

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Celeriac Seeds – Giant Prague Celeriac

Germination
7–14
Maturity
100-109 Days
Life cycle
Biennial
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