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When to plant Celeriac in Randolph County, AL

Randolph County gardeners should plant Celeriac between March 13 and April 3 in spring. With Randolph County's Zone 8a climate (last frost March 27), Celeriac needs 100–120 days to mature — plant by July 4 for a full harvest. A second sowing from August 23 to September 6 extends the harvest into fall.

When to Plant Celeriac in Randolph County, AL

Randolph County, Alabama Zone 8a July

July in the garden — Randolph County, Alabama

July is a pivotal month for Randolph County, Alabama gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost March 27
Avg. first frost November 1
Soil temp (4") 87°F
Watering Low
Pest pressure High
Daylight 14 hrs
  1. Bring in the celeriac

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

August prep starts now
  • First harvests: celeriac
  • Fall sowing: 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.

Randolph County, Alabama is in USDA Zone 8a. The average last spring frost is March 27 and the first fall frost is November 1, giving you a growing season of approximately 219 days.

At an elevation of 151 feet, Randolph County receives approximately 52.8 inches of rainfall annually with predominantly clay loam soil. Summer highs average 92°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.

Randolph County, AL (Zone 8a) Long season
219 days
Last Spring Frost March 27
219 growing days
First Fall Frost November 1

Randolph County Soil Profile

Soil Type

Clay Loam

Soil pH

5.2-6.8

Drainage

Well Drained

Celeriac Planting Risk Windows

Early Start (70% safe) ✓ Fits season (77 days to spare)
Start indoors: Feb 15 Transplant: Mar 22 🍅 Harvest: Jul 5 – Aug 9
Recommended (50%) ✓ Fits season (79 days to spare)
Start indoors: Feb 20 Transplant: Mar 27 🍅 Harvest: Jul 10 – Aug 14
Safe Start (90%) ✓ Fits season (72 days to spare)
Start indoors: Mar 13 Transplant: Apr 17 🍅 Harvest: Jul 31 – Sep 4

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 Randolph County

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

Soil pH

Your soil pH (5.2–6.8) overlaps with Celeriac's range (6.0–7.0), though not a perfect match.

Soil Texture

Your soil has 32% 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 (2.5%). 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 3.8" 0" ❄️ Dormant
Feb 4.4" 0" ❄️ Dormant
Mar 3.9" 4.3" 0" ✅ Rainfall sufficient
Apr 3.9" 3.6" 0.3" 💧 Light watering
May 3.9" 4.3" 0" ✅ Rainfall sufficient
Jun 3.9" 4.6" 0" ✅ Rainfall sufficient
Jul 3.9" 5.7" 0" ✅ Rainfall sufficient
Aug 3.9" 5.7" 0" ✅ Rainfall sufficient
Sep 3.9" 4" 0" ✅ Rainfall sufficient
Oct 3.9" 3.7" 0.2" 💧 Light watering
Nov 3.9" 4.3" 0" ✅ Rainfall sufficient
Dec 4.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Randolph 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 ~2,090 GDD — county provides 4,161 GDD Excellent fit

Celeriac Planting Timeline — Randolph County, AL

Celeriac Planting Calendar

Activity When Date Range
Start Indoors February 20 Feb 20 – Mar 6
Transplant Outdoors March 27 Mar 27 – Apr 10
Direct Sow March 13 Mar 13 – Apr 3
Harvest July 10 Jul 10 – Aug 14
Fall Sowing August 23 Aug 23 – Sep 6

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 8a

📆 Growing Season

219 days in Randolph County

Growing Tips for Celeriac in Randolph County

Direct sow Celeriac outdoors after March 27 in Randolph County when soil has warmed and frost danger has passed.

With Randolph County's clay soil (32% 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 Randolph County, AL?

Randolph County is in Zone 8a with an average last frost of March 27. Plan your Celeriac planting based on this frost date — see the calendar above for exact timing.

What planting zone is Randolph County, AL?

Randolph County, Alabama is in USDA Hardiness Zone 8a. The average last spring frost is March 27 and first fall frost is November 1.

When should I plant Celeriac in Randolph County, AL?

In Randolph County, AL, plant Celeriac after the last frost (around March 27) and before the first frost (around November 1). Best results when soil holds above 50°F.

What growing zone is Randolph County, AL for Celeriac?

Randolph County sits in USDA Zone 8a. Celeriac grows reliably in zones 3a through 9b, so it's a good fit here.

Can Celeriac grow in Randolph County's climate?

Yes — Celeriac grows well in Randolph County's temperate climate. Randolph County averages a 219-day frost-free season, with last frost around March 27 and first frost around November 1.

🌱

Your Randolph County Garden Planner — Free

A 22-page printable planner built for Randolph County (Zone 8a). 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 Randolph County, AL. Local conditions may vary. Last updated: July 2026.

Sources & credits

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