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When to Plant Celeriac in Wise County, TX

Wise County, Texas Zone 8a May

Your May gardening checklist

Each item below is timed to Wise County, Texas's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost March 25
Avg. first frost November 11
Soil temp (4") 62°F
Watering Low
Pest pressure Moderate
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.

Wise County, Texas is in USDA Zone 8a. The average last spring frost is March 25 and the first fall frost is November 11, giving you a growing season of approximately 231 days.

At an elevation of 3,288 feet, Wise County receives approximately 53.8 inches of rainfall annually with predominantly clay soil. Summer highs average 92°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.

Wise County, TX (Zone 8a) Long season
231 days
Last Spring Frost March 25
231 growing days
First Fall Frost November 11

Wise County Soil Profile

Soil Type

Clay

Soil pH

6.8-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (94 days to spare)
Start indoors: Feb 7 Transplant: Mar 14 🍅 Harvest: Jun 27 – Aug 1
Recommended (50%) ✓ Fits season (91 days to spare)
Start indoors: Feb 18 Transplant: Mar 25 🍅 Harvest: Jul 8 – Aug 12
Safe Start (90%) ✓ Fits season (85 days to spare)
Start indoors: Mar 11 Transplant: Apr 15 🍅 Harvest: Jul 29 – Sep 2

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 Wise County

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

Soil pH

Your soil pH (6.8–7.8) is more alkaline than Celeriac prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Your soil has 46% clay, which can cause forked or stunted roots for Celeriac. Use raised beds with loose, sandy mix for best results.

Drainage

Drainage is adequate for Celeriac.

Organic Matter

Organic matter is moderate (2.9%). 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
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 1.3" 0" ❄️ Dormant
Feb 2.1" 0" ❄️ Dormant
Mar 3.9" 3.3" 0.6" 💧 Light watering
Apr 3.9" 6.7" 0" ✅ Rainfall sufficient
May 3.9" 8.8" 0" ✅ Rainfall sufficient
Jun 3.9" 7.9" 0" ✅ Rainfall sufficient
Jul 3.9" 6.5" 0" ✅ Rainfall sufficient
Aug 3.9" 5.8" 0" ✅ Rainfall sufficient
Sep 3.9" 4.6" 0" ✅ Rainfall sufficient
Oct 3.9" 3.7" 0.2" 💧 Light watering
Nov 3.9" 1.6" 2.3" 🚿 Regular watering
Dec 1.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Wise 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 ~2,090 GDD — county provides 4,389 GDD Excellent fit

Celeriac Planting Timeline — Wise County, TX

Celeriac Planting Calendar

Activity When Date Range
Start Indoors February 18 Feb 18 – Mar 4
Transplant Outdoors March 25 Mar 25 – Apr 8
Direct Sow March 11 Mar 11 – Apr 1
Harvest July 8 Jul 8 – Aug 12
Fall Sowing September 2 Sep 2 – Sep 16

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors Transplant Outdoors Direct Sow
April Transplant Outdoors Direct Sow
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: too_alkaline

🗺️ USDA Zone

Zone 8a

📆 Growing Season

231 days in Wise County

Growing Tips for Celeriac in Wise County

Direct sow Celeriac outdoors after March 25 in Wise County when soil has warmed and frost danger has passed.

With Wise County's clay soil (46% clay), work in 3-4 inches of compost before planting Celeriac. Avoid tilling when soil is wet to prevent compaction.

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 Wise County, TX?

Wise County is in Zone 8a with an average last frost of March 25. Plan your Celeriac planting based on this frost date — see the calendar above for exact timing.

What planting zone is Wise County, TX?

Wise County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 25 and first fall frost is November 11.

🌱

Your Wise County Garden Planner — Free

A 24-page printable planner built for Wise County (Zone 8a). 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 Wise County, TX. 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.