Blog

When to Plant Celeriac in Victoria County, TX

Victoria County, Texas Zone 9b May

Your May planting checklist for Victoria County, Texas

A quick May briefing for Victoria County, Texas gardeners — what's urgent, what's next, and what can wait.

Avg. last frost February 26
Avg. first frost November 28
Soil temp (4") 68°F
Watering Low
Pest pressure High
Daylight 13.4 hrs
Coming up in June — start thinking about
  • First harvests: celeriac

Instant PDF download. No spam, unsubscribe any time.

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.

Victoria County, Texas is in USDA Zone 9b. The average last spring frost is February 26 and the first fall frost is November 28, giving you a growing season of approximately 275 days.

At an elevation of 3,908 feet, Victoria County receives approximately 57.3 inches of rainfall annually with predominantly loam soil. Summer highs average 101°F, so Celeriac may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Celeriac root diseases.

Victoria County, TX (Zone 9b) Year-round
275 days
Last Spring Frost February 26
275 growing days
First Fall Frost November 28

Victoria County Soil Profile

Soil Type

Loam

Soil pH

6.7-7.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (140 days to spare)
Start indoors: Jan 15 Transplant: Feb 12 🍅 Harvest: May 28 – Jul 2
Recommended (50%) ✓ Fits season (135 days to spare)
Start indoors: Jan 29 Transplant: Feb 26 🍅 Harvest: Jun 11 – Jul 16
Safe Start (90%) ✓ Fits season (132 days to spare)
Start indoors: Feb 21 Transplant: Mar 21 🍅 Harvest: Jul 4 – Aug 8

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 Victoria County

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

Soil pH

Your soil pH (6.7–7.4) is more alkaline than Celeriac prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Celeriac is a heavy drinker but your soil drains very quickly. Mulch heavily and consider drip irrigation.

Organic Matter

Organic matter is moderate (2.4%). Annual compost additions will help Celeriac.

How to Plant Celeriac

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Fall planting: Sow 8 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
0.3″/week
Watering frequency Only during dry spells
Season total 732 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 1.7" 0" ❄️ Dormant
Feb 3.9" 2.1" 1.8" 💧 Light watering
Mar 3.9" 3.8" 0.1" 💧 Light watering
Apr 3.9" 5.6" 0" ✅ Rainfall sufficient
May 3.9" 10" 0" ✅ Rainfall sufficient
Jun 3.9" 8.8" 0" ✅ Rainfall sufficient
Jul 3.9" 6.6" 0" ✅ Rainfall sufficient
Aug 3.9" 6.3" 0" ✅ Rainfall sufficient
Sep 3.9" 5.7" 0" ✅ Rainfall sufficient
Oct 3.9" 3.4" 0.5" 💧 Light watering
Nov 3.9" 1.9" 2" 🚿 Regular watering
Dec 1.3" 0" ❄️ Dormant

Water needs are for active growing months only (Feb–Nov in Victoria 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 ~2,832 GDD — county provides 7,107 GDD Excellent fit

Celeriac Planting Timeline — Victoria County, TX

Celeriac Planting Calendar

Activity When Date Range
Start Indoors January 29 Jan 29 – Feb 12
Transplant Outdoors February 26 Feb 26 – Mar 12
Direct Sow February 5 Feb 5 – Feb 26
Harvest June 11 Jun 11 – Jul 16
Fall Sowing October 3 Oct 3 – Oct 17

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · Only during dry spells

📅 Days to Maturity

100–120 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 9b

📆 Growing Season

275 days in Victoria County

Growing Tips for Celeriac in Victoria County

Direct sow Celeriac outdoors after February 26 in Victoria County when soil has warmed and frost danger has passed.

With summer highs reaching 101°F in Victoria County, provide afternoon shade for Celeriac and water deeply in the morning.

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 Victoria County, TX?

Victoria County is in Zone 9b with an average last frost of February 26. Plan your Celeriac planting based on this frost date — see the calendar above for exact timing.

What planting zone is Victoria County, TX?

Victoria County, Texas is in USDA Hardiness Zone 9b. The average last spring frost is February 26 and first fall frost is November 28.

🌱

Your Victoria County Garden Planner — Free

A 24-page printable planner built for Victoria County (Zone 9b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Victoria 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.