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When to Plant Celery in Richmond County, GA

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.

Richmond County, Georgia is in USDA Zone 8a. The average last spring frost is March 23 and the first fall frost is November 7, giving you a growing season of approximately 229 days.

At an elevation of 82 feet, Richmond County receives approximately 52.7 inches of rainfall annually with predominantly clay loam soil. Summer highs average 96ยฐF, so Celery may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Celery, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Celery root diseases.

Richmond County, GA (Zone 8a) Long season
229 days
Last Spring Frost March 23
229 growing days
First Fall Frost November 7

Richmond County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (91 days to spare)
Start indoors: Feb 9 Transplant: Mar 16 🍅 Harvest: Jun 8 – Aug 3
Recommended (50%) ✓ Fits season (89 days to spare)
Start indoors: Feb 16 Transplant: Mar 23 🍅 Harvest: Jun 15 – Aug 10
Safe Start (90%) ✓ Fits season (87 days to spare)
Start indoors: Mar 5 Transplant: Apr 9 🍅 Harvest: Jul 2 – Aug 27

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 Richmond County

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

Soil pH

Your soil pH (5.7โ€“6.4) overlaps with Celery's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

The clay loam soil in Richmond County is excellent for Celery โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.2%). 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

3
successive plantings in your 229-day season

Sow every 9.1 weeks. Last sowing by Jul 10 to harvest before frost.

For a dedicated fall crop, sow by Aug 29.

Plant Water Budget

Plant needs
1.3″/week
Rainfall provides
1.0″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 816 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

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 โ€” 4.8" 0" โ„๏ธ Dormant
Feb โ€” 3.6" 0" โ„๏ธ Dormant
Mar 5.6" 5.6" 0" โœ… Rainfall sufficient
Apr 5.6" 3.5" 2.1" ๐Ÿ’ง Light watering
May 5.6" 4.2" 1.4" ๐Ÿ’ง Light watering
Jun 5.6" 5" 0.6" ๐Ÿ’ง Light watering
Jul 5.6" 4.7" 0.9" ๐Ÿ’ง Light watering
Aug 5.6" 5.7" 0" โœ… Rainfall sufficient
Sep 5.6" 3.8" 1.8" ๐Ÿ’ง Light watering
Oct 5.6" 3.3" 2.3" ๐Ÿ’ง Light watering
Nov 5.6" 3.7" 1.9" ๐Ÿ’ง Light watering
Dec โ€” 4.7" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Richmond County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 ~2,200 GDD — county provides 5,038 GDD Excellent fit

Celery Planting Timeline โ€” Richmond County, GA

Celery Planting Calendar

Activity When Date Range
Start Indoors February 16 Feb 16 โ€“ Mar 2
Transplant Outdoors March 23 Mar 23 โ€“ Apr 6
Direct Sow March 9 Mar 9 โ€“ Mar 30
Harvest June 15 Jun 15 โ€“ Aug 10
Fall Sowing August 29 Aug 29 โ€“ Sep 12

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
May โ€”
June Harvest
July Harvest
August Fall Sowing Harvest
September Fall Sowing
October โ€”
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1.3"/week ยท 1-2 times/week

๐Ÿ“… Days to Maturity

80โ€“120 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

229 days in Richmond County

Growing Tips for Celery in Richmond County

Direct sow Celery outdoors after March 23 in Richmond County when soil has warmed and frost danger has passed.

With Richmond County's clay soil (26% clay), work in 3-4 inches of compost before planting Celery. Avoid tilling when soil is wet to prevent compaction.

With summer highs reaching 96ยฐF in Richmond County, provide afternoon shade for Celery and water deeply in the morning.

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 Richmond County, GA?

Richmond County is in Zone 8a with an average last frost of March 23. Plan your Celery planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Richmond County, GA?

Richmond County, Georgia is in USDA Hardiness Zone 8a. The average last spring frost is March 23 and first fall frost is November 7.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Richmond County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

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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 Richmond County, GA. Local conditions may vary. Last updated: April 2026.