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When to plant Celeriac in Russell County, AL

Russell County's spring Celeriac window runs March 7 through March 28. most warm-season crops establish quickly once soil holds above 60°F. A second sowing from September 1 to September 15 extends the harvest into fall.

When to Plant Celeriac in Russell County, AL

Russell County, Alabama Zone 8b July

Your July planting checklist for Russell County, Alabama

Your garden in Russell County, Alabama is working on a schedule, even when you're not. Here's where you should be this July.

Avg. last frost March 21
Avg. first frost November 10
Soil temp (4") 92°F
Watering Low
Pest pressure High
Daylight 13.9 hrs
  1. Bring in the celeriac

    If you can't use it all right away, check the food-preservation section of your planner.

August prep starts now
  • 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.

Russell County, Alabama is in USDA Zone 8b. The average last spring frost is March 21 and the first fall frost is November 10, giving you a growing season of approximately 234 days.

At an elevation of 81 feet, Russell County receives approximately 50.9 inches of rainfall annually with predominantly clay loam soil. Summer highs average 96°F, so Celeriac may need afternoon shade and extra watering during peak heat. 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.

Russell County, AL (Zone 8b) Long season
234 days
Last Spring Frost March 21
234 growing days
First Fall Frost November 10

Russell County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.7

Drainage

Well Drained

Celeriac Planting Risk Windows

Early Start (70% safe) ✓ Fits season (99 days to spare)
Start indoors: Jan 31 Transplant: Mar 7 🍅 Harvest: Jun 20 – Jul 25
Recommended (50%) ✓ Fits season (94 days to spare)
Start indoors: Feb 14 Transplant: Mar 21 🍅 Harvest: Jul 4 – Aug 8
Safe Start (90%) ✓ Fits season (84 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 Russell County

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

Soil pH

Your soil pH (5.5–6.7) overlaps with Celeriac's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.1%). 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
0.9″/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 4.1" 0" ❄️ Dormant
Feb 3.9" 0" ❄️ Dormant
Mar 3.9" 4.8" 0" ✅ Rainfall sufficient
Apr 3.9" 3.6" 0.3" 💧 Light watering
May 3.9" 4" 0" ✅ Rainfall sufficient
Jun 3.9" 4" 0" ✅ Rainfall sufficient
Jul 3.9" 5.7" 0" ✅ Rainfall sufficient
Aug 3.9" 5.5" 0" ✅ Rainfall sufficient
Sep 3.9" 4.2" 0" ✅ Rainfall sufficient
Oct 3.9" 3.5" 0.4" 💧 Light watering
Nov 3.9" 4.1" 0" ✅ Rainfall sufficient
Dec 3.6" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Russell 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 ~2,420 GDD — county provides 5,148 GDD Excellent fit

Celeriac Planting Timeline — Russell County, AL

Celeriac Planting Calendar

Activity When Date Range
Start Indoors February 14 Feb 14 – Feb 28
Transplant Outdoors March 21 Mar 21 – Apr 4
Direct Sow March 7 Mar 7 – Mar 28
Harvest July 4 Jul 4 – Aug 8
Fall Sowing September 1 Sep 1 – Sep 15

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March 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: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

234 days in Russell County

Growing Tips for Celeriac in Russell County

Direct sow Celeriac outdoors after March 21 in Russell County when soil has warmed and frost danger has passed.

With Russell County's clay soil (30% clay), work in 3-4 inches of compost before planting Celeriac. Avoid tilling when soil is wet to prevent compaction.

With summer highs reaching 96°F in Russell County, provide afternoon shade for Celeriac and water deeply in the morning.

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 Russell County, AL?

Russell County is in Zone 8b with an average last frost of March 21. Plan your Celeriac planting based on this frost date — see the calendar above for exact timing.

What planting zone is Russell County, AL?

Russell County, Alabama is in USDA Hardiness Zone 8b. The average last spring frost is March 21 and first fall frost is November 10.

When should I plant Celeriac in Russell County, AL?

In Russell County, AL, plant Celeriac after the last frost (around March 21) and before the first frost (around November 10). Best results when soil holds above 50°F.

What growing zone is Russell County, AL for Celeriac?

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

Can Celeriac grow in Russell County's climate?

Yes — Celeriac grows well in Russell County's temperate climate. Russell County averages a 234-day frost-free season, with last frost around March 21 and first frost around November 10.

🌱

Your Russell County Garden Planner — Free

A 22-page printable planner built for Russell 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 Russell County, AL. Local conditions may vary. Last updated: July 2026.

Sources & credits

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