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When to Plant Celeriac in De Soto Parish, LA

De Soto Parish, Louisiana Zone 8b May

Your May planting checklist for De Soto Parish, Louisiana

Your De Soto Parish, Louisiana garden is entering a new phase. Here's what's on the schedule for May and why each task matters now.

Avg. last frost March 11
Avg. first frost November 16
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
Get ahead of June
  • First harvests: celeriac

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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.

De Soto Parish, Louisiana is in USDA Zone 8b. The average last spring frost is March 11 and the first fall frost is November 16, giving you a growing season of approximately 250 days.

At an elevation of 327 feet, De Soto Parish receives approximately 52.2 inches of rainfall annually with predominantly loam soil. Summer highs average 94°F, providing good warmth for Celeriac during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Celeriac root diseases.

De Soto Parish, LA (Zone 8b) Long season
250 days
Last Spring Frost March 11
250 growing days
First Fall Frost November 16

De Soto Parish Soil Profile

Soil Type

Loam

Soil pH

6.3-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (112 days to spare)
Start indoors: Jan 29 Transplant: Mar 5 🍅 Harvest: Jun 18 – Jul 23
Recommended (50%) ✓ Fits season (110 days to spare)
Start indoors: Feb 4 Transplant: Mar 11 🍅 Harvest: Jun 24 – Jul 29
Safe Start (90%) ✓ Fits season (104 days to spare)
Start indoors: Feb 25 Transplant: Apr 1 🍅 Harvest: Jul 15 – Aug 19

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 De Soto Parish

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

Soil pH

Your soil pH (6.3–6.7) is within Celeriac's preferred range (6.0–7.0).

Soil Texture

The loam soil in De Soto Parish 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 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
0.3″/week
Watering frequency Only during dry spells
Season total 652 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 5.2" 0" ❄️ Dormant
Feb 4.4" 0" ❄️ Dormant
Mar 3.9" 4.6" 0" ✅ Rainfall sufficient
Apr 3.9" 3.8" 0.1" 💧 Light watering
May 3.9" 4" 0" ✅ Rainfall sufficient
Jun 3.9" 4.3" 0" ✅ Rainfall sufficient
Jul 3.9" 5.2" 0" ✅ Rainfall sufficient
Aug 3.9" 4.6" 0" ✅ Rainfall sufficient
Sep 3.9" 3.8" 0.1" 💧 Light watering
Oct 3.9" 3.8" 0.1" 💧 Light watering
Nov 3.9" 4.5" 0" ✅ Rainfall sufficient
Dec 4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in De Soto Parish). 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 ~2,255 GDD — county provides 5,125 GDD Excellent fit

Celeriac Planting Timeline — De Soto Parish, LA

Celeriac Planting Calendar

Activity When Date Range
Start Indoors February 4 Feb 4 – Feb 18
Transplant Outdoors March 11 Mar 11 – Mar 25
Direct Sow February 25 Feb 25 – Mar 18
Harvest June 24 Jun 24 – Jul 29
Fall Sowing September 7 Sep 7 – Sep 21

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

Month-by-Month Timeline

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

🗺️ USDA Zone

Zone 8b

📆 Growing Season

250 days in De Soto Parish

Growing Tips for Celeriac in De Soto Parish

Direct sow Celeriac outdoors after March 11 in De Soto Parish 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 De Soto Parish, LA?

De Soto Parish is in Zone 8b with an average last frost of March 11. Plan your Celeriac planting based on this frost date — see the calendar above for exact timing.

What planting zone is De Soto Parish, LA?

De Soto Parish, Louisiana is in USDA Hardiness Zone 8b. The average last spring frost is March 11 and first fall frost is November 16.

🌱

Your De Soto Parish Garden Planner — Free

A 24-page printable planner built for De Soto Parish (Zone 8b). 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 De Soto Parish, LA. 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.