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When to plant Celeriac in Graves County County,

For Celeriac in Graves County County, the safe spring window opens around March 14 and closes around April 4. Last expected frost is March 28, first fall frost October 31, giving a 217-day growing season. A second sowing from August 22 to September 5 extends the harvest into fall.

When to Plant Celeriac in Graves County, KY

Graves County, Kentucky Zone 7a June

June to-do list for Graves County, Kentucky

Here's what deserves your attention in Graves County, Kentucky this month. Everything below is tailored to Zone 7a and timed around your local frost dates.

Avg. last frost March 28
Avg. first frost October 31
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 14.5 hrs
July will be here before you know it — start on
  • 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.

Graves County, Kentucky is in USDA Zone 7a. The average last spring frost is March 28 and the first fall frost is October 31, giving you a growing season of approximately 217 days.

At an elevation of 1,433 feet, Graves County receives approximately 53 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85°F, providing good warmth for Celeriac during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Celeriac root diseases.

Graves County, KY (Zone 7a) Long season
217 days
Last Spring Frost March 28
217 growing days
First Fall Frost October 31

Graves County Soil Profile

Soil Type

Silt Loam

Soil pH

5.2-6.9

Drainage

Well Drained

Celeriac Planting Risk Windows

Early Start (70% safe) ✓ Fits season (80 days to spare)
Start indoors: Feb 12 Transplant: Mar 19 🍅 Harvest: Jul 2 – Aug 6
Recommended (50%) ✓ Fits season (77 days to spare)
Start indoors: Feb 21 Transplant: Mar 28 🍅 Harvest: Jul 11 – Aug 15
Safe Start (90%) ✓ Fits season (71 days to spare)
Start indoors: Mar 11 Transplant: Apr 15 🍅 Harvest: Jul 29 – Sep 2

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 Graves County

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

Soil pH

Your soil pH (5.2–6.9) overlaps with Celeriac's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.4%). 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
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 3.7" 0" ❄️ Dormant
Feb 4.5" 0" ❄️ Dormant
Mar 3.9" 5" 0" ✅ Rainfall sufficient
Apr 3.9" 4.2" 0" ✅ Rainfall sufficient
May 3.9" 4.6" 0" ✅ Rainfall sufficient
Jun 3.9" 5" 0" ✅ Rainfall sufficient
Jul 3.9" 5.7" 0" ✅ Rainfall sufficient
Aug 3.9" 4.2" 0" ✅ Rainfall sufficient
Sep 3.9" 4" 0" ✅ Rainfall sufficient
Oct 3.9" 3.4" 0.5" 💧 Light watering
Nov 4.1" 0" ❄️ Dormant
Dec 4.7" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Oct in Graves 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 ~1,512 GDD — county provides 2,983 GDD Excellent fit

Celeriac Planting Timeline — Graves County, KY

Celeriac Planting Calendar

Activity When Date Range
Start Indoors February 21 Feb 21 – Mar 7
Transplant Outdoors March 28 Mar 28 – Apr 11
Direct Sow March 14 Mar 14 – Apr 4
Harvest July 11 Jul 11 – Aug 15
Fall Sowing August 22 Aug 22 – Sep 5

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors Transplant Outdoors 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

217 days in Graves County

Growing Tips for Celeriac in Graves County

Direct sow Celeriac outdoors after March 28 in Graves 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 Graves County, KY?

Graves County is in Zone 7a with an average last frost of March 28. Plan your Celeriac planting based on this frost date — see the calendar above for exact timing.

What planting zone is Graves County, KY?

Graves County, Kentucky is in USDA Hardiness Zone 7a. The average last spring frost is March 28 and first fall frost is October 31.

When should I plant Celeriac in Graves County County, ?

In Graves County County, , plant Celeriac after the last frost (around March 28) and before the first frost (around October 31). Best results when soil holds above 50°F.

What growing zone is Graves County County, for Celeriac?

Graves County 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 Graves County County's climate?

Yes — Celeriac grows well in Graves County County's temperate climate. Graves County County averages a 217-day frost-free season, with last frost around March 28 and first frost around October 31.

🌱

Your Graves County Garden Planner — Free

A 22-page printable planner built for Graves 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 Graves County, KY. Local conditions may vary. Last updated: June 2026.

Sources & credits

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