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When to Plant Celeriac in Walton County, GA

Walton County, Georgia Zone 8b May

Your May game plan for Walton County, Georgia

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost March 22
Avg. first frost November 13
Soil temp (4") 70°F
Watering Low
Pest pressure Moderate
Daylight 13.8 hrs

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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.

Walton County, Georgia is in USDA Zone 8b. The average last spring frost is March 22 and the first fall frost is November 13, giving you a growing season of approximately 236 days.

At an elevation of 310 feet, Walton County receives approximately 61.3 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90°F, providing good warmth for Celeriac during the growing season. Clay soil retains moisture well for Celeriac, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Celeriac root diseases.

Walton County, GA (Zone 8b) Long season
236 days
Last Spring Frost March 22
236 growing days
First Fall Frost November 13

Walton County Soil Profile

Soil Type

Clay Loam

Soil pH

5.4-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (98 days to spare)
Start indoors: Feb 4 Transplant: Mar 11 🍅 Harvest: Jun 24 – Jul 29
Recommended (50%) ✓ Fits season (96 days to spare)
Start indoors: Feb 15 Transplant: Mar 22 🍅 Harvest: Jul 5 – Aug 9
Safe Start (90%) ✓ Fits season (94 days to spare)
Start indoors: Mar 6 Transplant: Apr 10 🍅 Harvest: Jul 24 – Aug 28

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 Walton County

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

Soil pH

Your soil pH (5.4–6.3) is more acidic than Celeriac prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

Your soil has 31% clay, which can cause forked or stunted roots for Celeriac. Use raised beds with loose, sandy mix for best results.

Organic Matter

Organic matter is moderate (2.8%). 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.

Plant Water Budget

Plant needs
0.9″/week
Rainfall provides
1.1″/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 4.8" 0" ❄️ Dormant
Feb 5" 0" ❄️ Dormant
Mar 3.9" 5.3" 0" ✅ Rainfall sufficient
Apr 3.9" 4.1" 0" ✅ Rainfall sufficient
May 3.9" 5.3" 0" ✅ Rainfall sufficient
Jun 3.9" 6" 0" ✅ Rainfall sufficient
Jul 3.9" 7.1" 0" ✅ Rainfall sufficient
Aug 3.9" 5.4" 0" ✅ Rainfall sufficient
Sep 3.9" 4.9" 0" ✅ Rainfall sufficient
Oct 3.9" 3.8" 0.1" 💧 Light watering
Nov 3.9" 4.4" 0" ✅ Rainfall sufficient
Dec 5.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Walton 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 ~1,925 GDD — county provides 4,130 GDD Excellent fit

Celeriac Planting Timeline — Walton County, GA

Celeriac Planting Calendar

Activity When Date Range
Start Indoors February 15 Feb 15 – Mar 1
Transplant Outdoors March 22 Mar 22 – Apr 5
Direct Sow March 8 Mar 8 – Mar 29
Harvest July 5 Jul 5 – Aug 9
Fall Sowing September 4 Sep 4 – Sep 18

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
May
June
July Harvest
August 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: too_acidic

🗺️ USDA Zone

Zone 8b

📆 Growing Season

236 days in Walton County

Growing Tips for Celeriac in Walton County

Direct sow Celeriac outdoors after March 22 in Walton County when soil has warmed and frost danger has passed.

With Walton County's clay soil (31% clay), work in 3-4 inches of compost before planting Celeriac. Avoid tilling when soil is wet to prevent compaction.

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 Walton County, GA?

Walton County is in Zone 8b with an average last frost of March 22. Plan your Celeriac planting based on this frost date — see the calendar above for exact timing.

What planting zone is Walton County, GA?

Walton County, Georgia is in USDA Hardiness Zone 8b. The average last spring frost is March 22 and first fall frost is November 13.

🌱

Your Walton County Garden Planner — Free

A 24-page printable planner built for Walton County (Zone 8b). 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 Walton County, GA. Local conditions may vary. Last updated: May 2026.

Sources & credits

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