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When to Plant Celery in Tensas Parish, LA

Tensas Parish, Louisiana Zone 8b May

Your May gardening checklist

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost March 9
Avg. first frost November 12
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
Get ahead of June
  • First harvests: celery

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Celery is a marshland plant that requires consistent moisture and cool temperatures to produce crisp, flavorful stalks. It is a rewarding but demanding garden crop.

Tensas Parish, Louisiana is in USDA Zone 8b. The average last spring frost is March 9 and the first fall frost is November 12, giving you a growing season of approximately 248 days.

At an elevation of 409 feet, Tensas Parish receives approximately 61.5 inches of rainfall annually with predominantly loam soil. Summer highs average 90°F, providing good warmth for Celery during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Celery root diseases.

Tensas Parish, LA (Zone 8b) Long season
248 days
Last Spring Frost March 9
248 growing days
First Fall Frost November 12
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Tensas Parish Soil Profile

Soil Type

Loam

Soil pH

6.2-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (102 days to spare)
Start indoors: Jan 29 Transplant: Mar 5 🍅 Harvest: May 28 – Jul 23
Recommended (50%) ✓ Fits season (108 days to spare)
Start indoors: Feb 2 Transplant: Mar 9 🍅 Harvest: Jun 1 – Jul 27
Safe Start (90%) ✓ Fits season (99 days to spare)
Start indoors: Mar 2 Transplant: Apr 6 🍅 Harvest: Jun 29 – Aug 24

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 Tensas Parish

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

Soil pH

Your soil pH (6.2–6.8) is within Celery's preferred range (6.0–7.0).

Soil Texture

The loam soil in Tensas Parish is excellent for Celery — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Celery.

How to Plant Celery

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

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Celery

3
successive plantings in your 248-day season

Sow every 9.1 weeks. Last sowing by Jul 15 to harvest before frost.

For a dedicated fall crop, sow by Sep 03.

Plant Water Budget

Plant needs
1.3″/week
Rainfall provides
1.0″/week
You supply
0.3″/week
Watering frequency Only during dry spells
Season total 570 gal / 100 sq ft

Monthly Watering Guide for Celery

Celery needs approximately 1.3 inches of water per week (5.6" per month). Here's how your county's rainfall compares month by month.

Month Celery Needs Rainfall You Supplement Action
Jan 5.6" 0" ❄️ Dormant
Feb 4.1" 0" ❄️ Dormant
Mar 5.6" 6.2" 0" ✅ Rainfall sufficient
Apr 5.6" 4.9" 0.7" 💧 Light watering
May 5.6" 5.3" 0.3" 💧 Light watering
Jun 5.6" 5" 0.6" 💧 Light watering
Jul 5.6" 6.1" 0" ✅ Rainfall sufficient
Aug 5.6" 5.4" 0.2" 💧 Light watering
Sep 5.6" 4.9" 0.7" 💧 Light watering
Oct 5.6" 3.9" 1.7" 💧 Light watering
Nov 5.6" 4.9" 0.7" 💧 Light watering
Dec 5.2" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Tensas Parish). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Celery 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.

Celery needs ~1,750 GDD — county provides 4,340 GDD Excellent fit

Celery Planting Timeline — Tensas Parish, LA

Celery 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 1 Jun 1 – Jul 27
Fall Sowing September 3 Sep 3 – Sep 17

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
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.3"/week · Only during dry spells

📅 Days to Maturity

80–120 days

🧪 Soil pH

Needs 6–7 · Your soil: ideal

🗺️ USDA Zone

Zone 8b

📆 Growing Season

248 days in Tensas Parish

Growing Tips for Celery in Tensas Parish

Direct sow Celery outdoors after March 09 in Tensas Parish when soil has warmed and frost danger has passed.

Common pests for Celery 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. Keep soil consistently moist and never let it dry out. Blanch stalks by mounding soil or using collars for milder 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 Celery in Tensas Parish, LA?

Tensas Parish is in Zone 8b with an average last frost of March 9. Plan your Celery planting based on this frost date — see the calendar above for exact timing.

What planting zone is Tensas Parish, LA?

Tensas Parish, Louisiana is in USDA Hardiness Zone 8b. The average last spring frost is March 9 and first fall frost is November 12.

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Your Tensas Parish Garden Planner — Free

A 24-page printable planner built for Tensas 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 Tensas Parish, LA. Local conditions may vary. Last updated: May 2026.

Sources & credits

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