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When to Plant Celeriac in Walthall County, MS

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.

Walthall County, Mississippi is in USDA Zone 8a. The average last spring frost is March 15 and the first fall frost is November 16, giving you a growing season of approximately 246 days.

At an elevation of 207 feet, Walthall County receives approximately 50.2 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90Β°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.

Walthall County, MS (Zone 8a) Long season
246 days
Last Spring Frost March 15
246 growing days
First Fall Frost November 16

Walthall County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.6

Drainage

Well Drained

Monthly Watering Guide for Celeriac

Celeriac needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Celeriac Needs Rainfall You Supplement Action
Jan β€” 4.2" 0" ❄️ Dormant
Feb β€” 4.5" 0" ❄️ Dormant
Mar 4.3" 4.5" 0" βœ… Rainfall sufficient
Apr 4.3" 4.4" 0" βœ… Rainfall sufficient
May 4.3" 4" 0.3" πŸ’§ Light watering
Jun 4.3" 4" 0.3" πŸ’§ Light watering
Jul 4.3" 5.9" 0" βœ… Rainfall sufficient
Aug 4.3" 4.2" 0.1" πŸ’§ Light watering
Sep 4.3" 3.5" 0.8" πŸ’§ Light watering
Oct 4.3" 3.6" 0.7" πŸ’§ Light watering
Nov 4.3" 3.4" 0.9" πŸ’§ Light watering
Dec β€” 4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Walthall County). Supplement amounts are based on average rainfall β€” actual needs vary with temperature, soil, and mulching.

Celeriac Planting Timeline β€” Walthall County, MS

Celeriac Planting Calendar

Activity When Date Range
Start Indoors February 8 Feb 8 – Feb 22
Transplant Outdoors March 15 Mar 15 – Mar 29
Direct Sow March 1 Mar 1 – Mar 22
Harvest June 28 Jun 28 – Aug 2
Fall Sowing September 7 Sep 7 – Sep 21

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

Month-by-Month Timeline

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

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

High β€” keep soil consistently moist

πŸ“… Days to Maturity

100–120 days

πŸ§ͺ Soil pH

Needs 6–7 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 8a

πŸ“† Growing Season

246 days in Walthall County

Growing Tips for Walthall County

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 Walthall County, MS?

Walthall County is in Zone 8a with an average last frost of March 15. Plan your Celeriac planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Walthall County, MS?

Walthall County, Mississippi is in USDA Hardiness Zone 8a. The average last spring frost is March 15 and first fall frost is November 16.

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Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Walthall County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

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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 Walthall County, MS. Local conditions may vary. Last updated: April 2026.