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When to Plant Celeriac in McCracken County, KY

Celeriac is a celery relative grown for its knobby, flavorful root rather than its stalks. It has a rich celery flavor and is excellent roasted, mashed, or in soups.

McCracken County, Kentucky is in USDA Zone 6b. The average last spring frost is March 30 and the first fall frost is October 30, giving you a growing season of approximately 214 days.

At an elevation of 1,445 feet, McCracken County receives approximately 48 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86ยฐF, providing good warmth for Celeriac during the growing season.

McCracken County, KY (Zone 6b) Long season
214 days
Last Spring Frost March 30
214 growing days
First Fall Frost October 30

McCracken County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (73 days to spare)
Start indoors: Feb 17 Transplant: Mar 24 🍅 Harvest: Jul 7 – Aug 11
Recommended (50%) ✓ Fits season (74 days to spare)
Start indoors: Feb 23 Transplant: Mar 30 🍅 Harvest: Jul 13 – Aug 17
Safe Start (90%) ✓ Fits season (68 days to spare)
Start indoors: Mar 13 Transplant: Apr 17 🍅 Harvest: Jul 31 – Sep 4

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.9″/week
You supply
0.6″/week
Watering frequency 1-2 times/week
Season total 1,063 gal / 100 sq ft
Celeriac needs ~1,595 GDD — county provides 3,103 GDD Excellent fit

Celeriac Planting Timeline โ€” McCracken County, KY

Celeriac Planting Calendar

Activity When Date Range
Start Indoors February 23 Feb 23 โ€“ Mar 9
Transplant Outdoors March 30 Mar 30 โ€“ Apr 13
Direct Sow March 16 Mar 16 โ€“ Apr 6
Fall Sowing August 21 Aug 21 โ€“ Sep 4
Harvest July 13 Jul 13 โ€“ Aug 17

Plant 1" deep ยท 15" apart ยท Rows 24" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February Start Indoors
March Start Indoors Transplant Outdoors Direct Sow
April Transplant Outdoors Direct Sow
May โ€”
June โ€”
July Harvest
August Fall Sowing Harvest
September Fall Sowing
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

High โ€” keep soil consistently moist

Days to Maturity

100โ€“120 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 6b

Growing Season

214 days

Growing Tips for McCracken County

Start seeds indoors 10-12 weeks before last frost. Remove side roots as they develop to encourage a single large bulb. Harvest after a light frost for best flavor.

Companion Planting

Good Companions

Avoid Planting Near

  • Carrots
  • Parsnip

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Frequently Asked Questions

When should I plant Celeriac in McCracken County, KY?

McCracken County is in Zone 6b with an average last frost of March 30. Plan your Celeriac planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is McCracken County, KY?

McCracken County, Kentucky is in USDA Hardiness Zone 6b. The average last spring frost is March 30 and first fall frost is October 30.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help McCracken County gardeners in Zone 6b organize planting dates, track what's growing, and never miss a planting window.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for McCracken County, KY. Local conditions may vary. Last updated: April 2026.