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When to Plant Celeriac in Henderson County, TX

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.

Henderson County, Texas is in USDA Zone 8a. The average last spring frost is March 9 and the first fall frost is November 16, giving you a growing season of approximately 252 days.

At an elevation of 290 feet, Henderson County receives approximately 72.8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 92Β°F, providing good warmth for Celeriac during the growing season. Sandy soil warms quickly in spring β€” great for early planting β€” but Celeriac will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Celeriac root diseases.

Henderson County, TX (Zone 8a) Long season
252 days
Last Spring Frost March 9
252 growing days
First Fall Frost November 16

Henderson County Soil Profile

Soil Type

Sandy 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€” 1.9" 0" ❄️ Dormant
Feb β€” 2.3" 0" ❄️ Dormant
Mar 4.3" 4.5" 0" βœ… Rainfall sufficient
Apr 4.3" 7.1" 0" βœ… Rainfall sufficient
May 4.3" 10.7" 0" βœ… Rainfall sufficient
Jun 4.3" 11.5" 0" βœ… Rainfall sufficient
Jul 4.3" 10.1" 0" βœ… Rainfall sufficient
Aug 4.3" 8.8" 0" βœ… Rainfall sufficient
Sep 4.3" 6.8" 0" βœ… Rainfall sufficient
Oct 4.3" 4.9" 0" βœ… Rainfall sufficient
Nov 4.3" 2.6" 1.7" πŸ’§ Light watering
Dec β€” 1.6" 0" ❄️ Dormant

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

Celeriac Planting Timeline β€” Henderson County, TX

Celeriac Planting Calendar

Activity When Date Range
Start Indoors February 2 Feb 2 – Feb 16
Transplant Outdoors March 9 Mar 9 – Mar 23
Direct Sow February 23 Feb 23 – Mar 16
Harvest June 22 Jun 22 – Jul 27
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 Direct Sow
March Transplant Outdoors Direct Sow
April β€”
May β€”
June Harvest
July Harvest
August β€”
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

252 days in Henderson County

Growing Tips for Henderson 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 Henderson County, TX?

Henderson County is in Zone 8a with an average last frost of March 9. Plan your Celeriac planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Henderson County, TX?

Henderson County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 9 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 Henderson 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 Henderson County, TX. Local conditions may vary. Last updated: April 2026.