Blog

When to Plant Celery in Ouachita Parish, LA

Ouachita Parish, Louisiana Zone 8b May

Ouachita Parish, Louisiana gardeners: here's your May plan

Here's what deserves your attention in Ouachita Parish, Louisiana this month. Everything below is tailored to Zone 8b and timed around your local frost dates.

Avg. last frost March 10
Avg. first frost November 12
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
Looking ahead to June
  • First harvests: celery

Instant PDF download. No spam, unsubscribe any time.

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.

Ouachita Parish, Louisiana is in USDA Zone 8b. The average last spring frost is March 10 and the first fall frost is November 12, giving you a growing season of approximately 247 days.

At an elevation of 340 feet, Ouachita Parish receives approximately 53.7 inches of rainfall annually with predominantly loam soil. Summer highs average 92°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.

Ouachita Parish, LA (Zone 8b) Long season
247 days
Last Spring Frost March 10
247 growing days
First Fall Frost November 12
Share this guide:

Ouachita Parish Soil Profile

Soil Type

Loam

Soil pH

6.3-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (104 days to spare)
Start indoors: Jan 28 Transplant: Mar 4 🍅 Harvest: May 27 – Jul 22
Recommended (50%) ✓ Fits season (107 days to spare)
Start indoors: Feb 3 Transplant: Mar 10 🍅 Harvest: Jun 2 – Jul 28
Safe Start (90%) ✓ Fits season (97 days to spare)
Start indoors: Mar 3 Transplant: Apr 7 🍅 Harvest: Jun 30 – Aug 25

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 Ouachita Parish

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

Soil pH

Your soil pH (6.3–6.8) is within Celery's preferred range (6.0–7.0).

Soil Texture

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

Organic Matter

Organic matter is moderate (2.7%). 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 247-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
0.9″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 850 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 5.1" 0" ❄️ Dormant
Feb 4.9" 0" ❄️ Dormant
Mar 5.6" 4.4" 1.2" 💧 Light watering
Apr 5.6" 4" 1.6" 💧 Light watering
May 5.6" 4.8" 0.8" 💧 Light watering
Jun 5.6" 5" 0.6" 💧 Light watering
Jul 5.6" 5" 0.6" 💧 Light watering
Aug 5.6" 4.9" 0.7" 💧 Light watering
Sep 5.6" 3.6" 2" 💧 Light watering
Oct 5.6" 3.6" 2" 💧 Light watering
Nov 5.6" 4.2" 1.4" 💧 Light watering
Dec 4.4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Ouachita 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 ~1,900 GDD — county provides 4,693 GDD Excellent fit

Celery Planting Timeline — Ouachita Parish, LA

Celery Planting Calendar

Activity When Date Range
Start Indoors February 3 Feb 3 – Feb 17
Transplant Outdoors March 10 Mar 10 – Mar 24
Direct Sow February 24 Feb 24 – Mar 17
Harvest June 2 Jun 2 – Jul 28
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
Share this guide:

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.3"/week · 1-2 times/week

📅 Days to Maturity

80–120 days

🧪 Soil pH

Needs 6–7 · Your soil: ideal

🗺️ USDA Zone

Zone 8b

📆 Growing Season

247 days in Ouachita Parish

Growing Tips for Celery in Ouachita Parish

Direct sow Celery outdoors after March 10 in Ouachita 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 Ouachita Parish, LA?

Ouachita Parish is in Zone 8b with an average last frost of March 10. Plan your Celery planting based on this frost date — see the calendar above for exact timing.

What planting zone is Ouachita Parish, LA?

Ouachita Parish, Louisiana is in USDA Hardiness Zone 8b. The average last spring frost is March 10 and first fall frost is November 12.

🌱

Your Ouachita Parish Garden Planner — Free

A 24-page printable planner built for Ouachita 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.

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 Ouachita 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.