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When to Plant Celeriac in Monroe County, AR

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.

Monroe County, Arkansas is in USDA Zone 7b. The average last spring frost is March 14 and the first fall frost is November 13, giving you a growing season of approximately 244 days.

At an elevation of 1,042 feet, Monroe County receives approximately 49.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88ยฐF, providing good warmth for Celeriac during the growing season.

Monroe County, AR (Zone 7b) Long season
244 days
Last Spring Frost March 14
244 growing days
First Fall Frost November 13

Monroe County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (101 days to spare)
Start indoors: Feb 2 Transplant: Mar 9 🍅 Harvest: Jun 22 – Jul 27
Recommended (50%) ✓ Fits season (104 days to spare)
Start indoors: Feb 7 Transplant: Mar 14 🍅 Harvest: Jun 27 – Aug 1
Safe Start (90%) ✓ Fits season (96 days to spare)
Start indoors: Mar 3 Transplant: Apr 7 🍅 Harvest: Jul 21 – Aug 25

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 Monroe County

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

Soil pH

Your soil pH (5.3โ€“6.8) overlaps with Celeriac's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

The silt loam soil in Monroe County is excellent for Celeriac โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.2%). 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
0.9″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 97 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 โ€” 3.9" 0" โ„๏ธ Dormant
Feb โ€” 3.7" 0" โ„๏ธ Dormant
Mar 3.9" 4.3" 0" โœ… Rainfall sufficient
Apr 3.9" 3.7" 0.2" ๐Ÿ’ง Light watering
May 3.9" 3.5" 0.4" ๐Ÿ’ง Light watering
Jun 3.9" 5.1" 0" โœ… Rainfall sufficient
Jul 3.9" 5.9" 0" โœ… Rainfall sufficient
Aug 3.9" 5.3" 0" โœ… Rainfall sufficient
Sep 3.9" 3.3" 0.6" ๐Ÿ’ง Light watering
Oct 3.9" 3.7" 0.2" ๐Ÿ’ง Light watering
Nov 3.9" 3.6" 0.3" ๐Ÿ’ง Light watering
Dec โ€” 3.6" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Monroe County). Supplement amounts are based on average rainfall โ€” 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" 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.

Celeriac needs ~1,760 GDD — county provides 3,904 GDD Excellent fit

Celeriac Planting Timeline โ€” Monroe County, AR

Celeriac Planting Calendar

Activity When Date Range
Start Indoors February 7 Feb 7 โ€“ Feb 21
Transplant Outdoors March 14 Mar 14 โ€“ Mar 28
Direct Sow February 28 Feb 28 โ€“ Mar 21
Harvest June 27 Jun 27 โ€“ Aug 1
Fall Sowing September 4 Sep 4 โ€“ Sep 18

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

Month-by-Month Timeline

MonthActivities
January โ€”
February Start Indoors Direct Sow
March Transplant Outdoors Direct Sow
April โ€”
May โ€”
June Harvest
July Harvest
August Harvest
September Fall Sowing
October โ€”
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.9"/week ยท Only during dry spells

๐Ÿ“… Days to Maturity

100โ€“120 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

244 days in Monroe County

Growing Tips for Celeriac in Monroe County

Direct sow Celeriac outdoors after March 14 in Monroe 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 Monroe County, AR?

Monroe County is in Zone 7b with an average last frost of March 14. Plan your Celeriac planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Monroe County, AR?

Monroe County, Arkansas is in USDA Hardiness Zone 7b. The average last spring frost is March 14 and first fall frost is November 13.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Monroe County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Monroe County, AR. Local conditions may vary. Last updated: April 2026.