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When to plant Celery in Grant County County,

The best window to plant Celery in Grant County County, is April 1–April 22, when soil warms to 50°F. Last frost typically hits April 15; first frost October 26. A second sowing from August 17 to August 31 extends the harvest into fall.

When to Plant Celery in Grant County, KY

Celery
Grant County, Kentucky Zone 6b June

June in Grant County, Kentucky — your action list

Each item below is timed to Grant County, Kentucky's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost April 15
Avg. first frost October 26
Soil temp (4") 70°F
Watering Low
Pest pressure High
Daylight 14.7 hrs
A few tasks this June that'll pay off in July
  • First harvests: celery

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Celery is a marshland plant that requires consistent moisture and cool temperatures to produce crisp, flavorful stalks. It is a rewarding but demanding garden crop.

Grant County, Kentucky is in USDA Zone 6b. The average last spring frost is April 15 and the first fall frost is October 26, giving you a growing season of approximately 194 days.

At an elevation of 2,483 feet, Grant County receives approximately 46.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Celery during the growing season.

Grant County, KY (Zone 6b) Moderate season
194 days
Last Spring Frost April 15
194 growing days
First Fall Frost October 26

Grant County Soil Profile

Soil Type

Silt Loam

Soil pH

5.4-7.1

Drainage

Well Drained

Celery Planting Risk Windows

Early Start (70% safe) ✓ Fits season (55 days to spare)
Start indoors: Mar 5 Transplant: Apr 9 🍅 Harvest: Jul 2 – Aug 27
Recommended (50%) ✓ Fits season (54 days to spare)
Start indoors: Mar 11 Transplant: Apr 15 🍅 Harvest: Jul 8 – Sep 2
Safe Start (90%) ✓ Fits season (49 days to spare)
Start indoors: Mar 29 Transplant: May 3 🍅 Harvest: Jul 26 – Sep 20

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 Grant County

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

Soil pH

Your soil pH (5.4–7.1) overlaps with Celery's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.4%). Annual compost additions will help Celery.

How to Plant Celery

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

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

Succession Planting Celery

2
successive plantings in your 194-day season

Sow every 9.1 weeks. Last sowing by Jun 28 to harvest before frost.

For a dedicated fall crop, sow by Aug 17.

Celery Water Budget

Plant needs
1.3″/week
Rainfall provides
1.0″/week
You supply
0.3″/week
Watering frequency Only during dry spells
Season total 503 gal / 100 sq ft

Monthly Watering Guide for Celery

Celery needs approximately 1.3 inches of water per week (5.6" per month). Here's how your county's rainfall compares month by month.

Month Celery Needs Rainfall You Supplement Action
Jan 3.7" 0" ❄️ Dormant
Feb 3.5" 0" ❄️ Dormant
Mar 4.5" 0" ❄️ Dormant
Apr 5.6" 3" 2.6" 💧 Light watering
May 5.6" 3.4" 2.2" 💧 Light watering
Jun 5.6" 4.5" 1.1" 💧 Light watering
Jul 5.6" 5.1" 0.5" 💧 Light watering
Aug 5.6" 4.2" 1.4" 💧 Light watering
Sep 5.6" 3.7" 1.9" 💧 Light watering
Oct 5.6" 3" 2.6" 💧 Light watering
Nov 3.7" 0" ❄️ Dormant
Dec 4.2" 0" ❄️ Dormant

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

Celery 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.

Celery needs ~1,450 GDD — county provides 2,813 GDD Excellent fit

Celery Planting Timeline — Grant County, KY

Celery Planting Calendar

Activity When Date Range
Start Indoors March 11 Mar 11 – Mar 25
Transplant Outdoors April 15 Apr 15 – Apr 29
Direct Sow April 1 Apr 1 – Apr 22
Harvest July 8 Jul 8 – Sep 2
Fall Sowing August 17 Aug 17 – Aug 31

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.3"/week · Only during dry spells

📅 Days to Maturity

80–120 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 6b

📆 Growing Season

194 days in Grant County

Growing Tips for Celery in Grant County

Direct sow Celery outdoors after April 15 in Grant County when soil has warmed and frost danger has passed.

Common pests for Celery 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. Keep soil consistently moist and never let it dry out. Blanch stalks by mounding soil or using collars for milder 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 Celery in Grant County, KY?

Grant County is in Zone 6b with an average last frost of April 15. Plan your Celery planting based on this frost date — see the calendar above for exact timing.

What planting zone is Grant County, KY?

Grant County, Kentucky is in USDA Hardiness Zone 6b. The average last spring frost is April 15 and first fall frost is October 26.

When should I plant Celery in Grant County County, ?

In Grant County County, , plant Celery after the last frost (around April 15) and before the first frost (around October 26). Best results when soil holds above 50°F.

What growing zone is Grant County County, for Celery?

Grant County County sits in USDA Zone 6b. Celery grows reliably in zones 2a through 10b, so it's a good fit here.

Can Celery grow in Grant County County's climate?

Yes — Celery grows well in Grant County County's temperate climate. Grant County County averages a 194-day frost-free season, with last frost around April 15 and first frost around October 26.

🌱

Your Grant County Garden Planner — Free

A 22-page printable planner built for Grant County (Zone 6b). 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 Grant County, KY. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.