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When to Plant Celeriac in Lafayette County, AR

Lafayette County, Arkansas Zone 8b May

May to-do list for Lafayette County, Arkansas

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

Avg. last frost March 21
Avg. first frost November 12
Soil temp (4") 71°F
Watering Low
Pest pressure High
Daylight 13.7 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.

Lafayette County, Arkansas is in USDA Zone 8b. The average last spring frost is March 21 and the first fall frost is November 12, giving you a growing season of approximately 236 days.

At an elevation of 819 feet, Lafayette County receives approximately 54.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 93°F, providing good warmth for Celeriac during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Celeriac root diseases.

Lafayette County, AR (Zone 8b) Long season
236 days
Last Spring Frost March 21
236 growing days
First Fall Frost November 12
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Lafayette County Soil Profile

Soil Type

Silt Loam

Soil pH

5.6-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (93 days to spare)
Start indoors: Feb 5 Transplant: Mar 12 🍅 Harvest: Jun 25 – Jul 30
Recommended (50%) ✓ Fits season (96 days to spare)
Start indoors: Feb 14 Transplant: Mar 21 🍅 Harvest: Jul 4 – Aug 8
Safe Start (90%) ✓ Fits season (89 days to spare)
Start indoors: Mar 10 Transplant: Apr 14 🍅 Harvest: Jul 28 – Sep 1

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 Lafayette County

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

Soil pH

Your soil pH (5.6–6.7) overlaps with Celeriac's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Celeriac.

Organic Matter

Organic matter is moderate (3.1%). 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.

Plant 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 4.9" 0" ❄️ Dormant
Feb 4.3" 0" ❄️ Dormant
Mar 3.9" 4.6" 0" ✅ Rainfall sufficient
Apr 3.9" 4.8" 0" ✅ Rainfall sufficient
May 3.9" 3.9" 0" ✅ Rainfall sufficient
Jun 3.9" 4.6" 0" ✅ Rainfall sufficient
Jul 3.9" 6.5" 0" ✅ Rainfall sufficient
Aug 3.9" 5.1" 0" ✅ Rainfall sufficient
Sep 3.9" 4.1" 0" ✅ Rainfall sufficient
Oct 3.9" 4" 0" ✅ Rainfall sufficient
Nov 3.9" 3.9" 0" ✅ Rainfall sufficient
Dec 3.9" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Lafayette 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 ~2,172 GDD — county provides 4,661 GDD Excellent fit

Celeriac Planting Timeline — Lafayette County, AR

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 3 Sep 3 – Sep 17

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
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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

236 days in Lafayette County

Growing Tips for Celeriac in Lafayette County

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

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 Lafayette County, AR?

Lafayette 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 Lafayette County, AR?

Lafayette County, Arkansas is in USDA Hardiness Zone 8b. The average last spring frost is March 21 and first fall frost is November 12.

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Your Lafayette County Garden Planner — Free

A 24-page printable planner built for Lafayette 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 Lafayette County, AR. Local conditions may vary. Last updated: May 2026.

Sources & credits

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