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When to Plant Parsley in Bienville Parish, LA

Bienville Parish, Louisiana Zone 8b May

May in Bienville Parish, Louisiana — your action list

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

Avg. last frost March 16
Avg. first frost November 12
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
  1. Start harvesting parsley

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

Get ahead of June
  • First harvests: parsley

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Parsley is a biennial herb available in flat-leaf (Italian) and curly varieties. It is a nutritional powerhouse rich in vitamins C and K and adds fresh flavor to countless dishes.

Bienville Parish, Louisiana is in USDA Zone 8b. The average last spring frost is March 16 and the first fall frost is November 12, giving you a growing season of approximately 241 days.

At an elevation of 438 feet, Bienville Parish receives approximately 56 inches of rainfall annually with predominantly loam soil. Summer highs average 94°F, providing good warmth for Parsley during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Parsley root diseases.

Bienville Parish, LA (Zone 8b) Long season
241 days
Last Spring Frost March 16
241 growing days
First Fall Frost November 12

Bienville Parish Soil Profile

Soil Type

Loam

Soil pH

5.9-6.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (118 days to spare)
Start indoors: Feb 3 Transplant: Mar 3 🍅 Harvest: May 5 – Jul 7
Recommended (50%) ✓ Fits season (122 days to spare)
Start indoors: Feb 9 Transplant: Mar 9 🍅 Harvest: May 11 – Jul 13
Safe Start (90%) ✓ Fits season (113 days to spare)
Start indoors: Mar 7 Transplant: Apr 4 🍅 Harvest: Jun 6 – 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 Bienville Parish

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

Soil pH

Your soil pH (5.9–6.9) overlaps with Parsley's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Parsley.

Organic Matter

Organic matter is moderate (2.9%). Annual compost additions will help Parsley.

How to Plant Parsley

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

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

Succession Planting Parsley

4
successive plantings in your 241-day season

Sow every 6.9 weeks. Last sowing by Aug 24 to harvest before frost.

For a dedicated fall crop, sow by Sep 03.

Plant Water Budget

Plant needs
0.6″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Parsley

Parsley needs approximately 0.6 inches of water per week (2.6" per month). Here's how your county's rainfall compares month by month.

Month Parsley Needs Rainfall You Supplement Action
Jan 4.5" 0" ❄️ Dormant
Feb 4.2" 0" ❄️ Dormant
Mar 2.6" 5.3" 0" ✅ Rainfall sufficient
Apr 2.6" 3.8" 0" ✅ Rainfall sufficient
May 2.6" 4.8" 0" ✅ Rainfall sufficient
Jun 2.6" 4.8" 0" ✅ Rainfall sufficient
Jul 2.6" 6.5" 0" ✅ Rainfall sufficient
Aug 2.6" 4.8" 0" ✅ Rainfall sufficient
Sep 2.6" 4.3" 0" ✅ Rainfall sufficient
Oct 2.6" 4.1" 0" ✅ Rainfall sufficient
Nov 2.6" 3.9" 0" ✅ Rainfall sufficient
Dec 5" 0" ❄️ Dormant

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

Parsley 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.

Parsley needs ~1,435 GDD — county provides 4,940 GDD Excellent fit

Parsley Planting Timeline — Bienville Parish, LA

Parsley Planting Calendar

Activity When Date Range
Start Indoors February 9 Feb 9 – Feb 23
Transplant Outdoors March 9 Mar 9 – Mar 23
Direct Sow March 2 Mar 2 – Mar 23
Harvest May 11 May 11 – Jul 13
Fall Sowing September 3 Sep 3 – Sep 17

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.6"/week · Natural rainfall sufficient

📅 Days to Maturity

60–80 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

241 days in Bienville Parish

Growing Tips for Parsley in Bienville Parish

Direct sow Parsley outdoors after March 16 in Bienville Parish when soil has warmed and frost danger has passed.

Common pests for Parsley 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 6-8 weeks before last frost. Soak seeds overnight as germination is slow. Harvest outer stems first to keep plants productive. Parsley attracts swallowtail butterflies.

Companion Planting

Good Companions

Avoid Planting Near

  • Mint
  • Lettuce

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Parsley in Bienville Parish, LA?

Bienville Parish is in Zone 8b with an average last frost of March 16. Plan your Parsley planting based on this frost date — see the calendar above for exact timing.

What planting zone is Bienville Parish, LA?

Bienville Parish, Louisiana is in USDA Hardiness Zone 8b. The average last spring frost is March 16 and first fall frost is November 12.

🌱

Your Bienville Parish Garden Planner — Free

A 24-page printable planner built for Bienville 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 Bienville 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.