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When to plant Celeriac in Logan County, KY

In Logan County, plant Celeriac in spring between March 23 and April 13, once soil temps hold above 50°F. Logan County's last frost averages April 6, so most warm-season crops establish quickly once soil holds above 60°F. For a fall crop, sow between August 20 and September 3 — roughly 100–120 days before the first frost on October 29.

When to Plant Celeriac in Logan County, KY

Logan County, Kentucky Zone 7a June

Top priorities for Logan County, Kentucky gardeners in June

A quick June briefing for Logan County, Kentucky gardeners — what's urgent, what's next, and what can wait.

Avg. last frost April 6
Avg. first frost October 29
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 14.5 hrs
A few tasks this June that'll pay off in July
  • First harvests: celeriac

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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.

Logan County, Kentucky is in USDA Zone 7a. The average last spring frost is April 6 and the first fall frost is October 29, giving you a growing season of approximately 206 days.

At an elevation of 1,395 feet, Logan County receives approximately 47.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Celeriac during the growing season.

Logan County, KY (Zone 7a) Long season
206 days
Last Spring Frost April 6
206 growing days
First Fall Frost October 29

Logan County Soil Profile

Soil Type

Silt Loam

Soil pH

5.6-6.5

Drainage

Well Drained

Celeriac Planting Risk Windows

Early Start (70% safe) ✓ Fits season (67 days to spare)
Start indoors: Feb 23 Transplant: Mar 30 🍅 Harvest: Jul 13 – Aug 17
Recommended (50%) ✓ Fits season (66 days to spare)
Start indoors: Mar 2 Transplant: Apr 6 🍅 Harvest: Jul 20 – Aug 24
Safe Start (90%) ✓ Fits season (66 days to spare)
Start indoors: Mar 15 Transplant: Apr 19 🍅 Harvest: Aug 2 – Sep 6

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.

Soil Compatibility in Logan County

How your county's soil matches Celeriac's growing requirements.

Soil pH

Your soil pH (5.6–6.5) overlaps with Celeriac's range (6.0–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Logan County is excellent for Celeriac — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.0%). Annual compost additions will help Celeriac.

How to Plant Celeriac

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Celeriac Water Budget

Plant needs
0.9″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Celeriac

Celeriac needs approximately 0.9 inches of water per week (3.9" per month). Here's how your county's rainfall compares month by month.

Month Celeriac Needs Rainfall You Supplement Action
Jan 4.2" 0" ❄️ Dormant
Feb 3.9" 0" ❄️ Dormant
Mar 4.6" 0" ❄️ Dormant
Apr 3.9" 3.2" 0.7" 💧 Light watering
May 3.9" 4.3" 0" ✅ Rainfall sufficient
Jun 3.9" 4.3" 0" ✅ Rainfall sufficient
Jul 3.9" 5" 0" ✅ Rainfall sufficient
Aug 3.9" 4.8" 0" ✅ Rainfall sufficient
Sep 3.9" 3.1" 0.8" 💧 Light watering
Oct 3.9" 3.4" 0.5" 💧 Light watering
Nov 3.2" 0" ❄️ Dormant
Dec 3.5" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Logan County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Celeriac Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Celeriac needs ~1,760 GDD — county provides 3,296 GDD Excellent fit

Celeriac Planting Timeline — Logan County, KY

Celeriac Planting Calendar

Activity When Date Range
Start Indoors March 2 Mar 2 – Mar 16
Transplant Outdoors April 6 Apr 6 – Apr 20
Direct Sow March 23 Mar 23 – Apr 13
Harvest July 20 Jul 20 – Aug 24
Fall Sowing August 20 Aug 20 – Sep 3

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · Natural rainfall sufficient

📅 Days to Maturity

100–120 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

206 days in Logan County

Growing Tips for Celeriac in Logan County

Direct sow Celeriac outdoors after April 06 in Logan County when soil has warmed and frost danger has passed.

Common pests for Celeriac in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

General growing tips

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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Celeriac in Logan County, KY?

Logan County is in Zone 7a with an average last frost of April 6. Plan your Celeriac planting based on this frost date — see the calendar above for exact timing.

What planting zone is Logan County, KY?

Logan County, Kentucky is in USDA Hardiness Zone 7a. The average last spring frost is April 6 and first fall frost is October 29.

When should I plant Celeriac in Logan County, KY?

In Logan County, KY, plant Celeriac after the last frost (around April 6) and before the first frost (around October 29). Best results when soil holds above 50°F.

What growing zone is Logan County, KY for Celeriac?

Logan County sits in USDA Zone 7a. Celeriac grows reliably in zones 3a through 9b, so it's a good fit here.

Can Celeriac grow in Logan County's climate?

Yes — Celeriac grows well in Logan County's temperate climate. Logan County averages a 206-day frost-free season, with last frost around April 6 and first frost around October 29.

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Your Logan County Garden Planner — Free

A 22-page printable planner built for Logan County (Zone 7a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Logan County, KY. Local conditions may vary. Last updated: June 2026.

Sources & credits

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