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When to Plant Oregano in Bossier Parish, LA

Bossier Parish, Louisiana Zone 8b May

Your May gardening checklist

A quick May briefing for Bossier Parish, Louisiana gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 15
Avg. first frost November 14
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
  1. Harvest oregano as they ripen

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

Before June arrives, get these ready
  • First harvests: oregano

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Oregano is a robust perennial herb essential to Italian and Greek cuisine. Its pungent, savory leaves intensify in flavor when dried.

Bossier Parish, Louisiana is in USDA Zone 8b. The average last spring frost is March 15 and the first fall frost is November 14, giving you a growing season of approximately 244 days.

At an elevation of 469 feet, Bossier Parish receives approximately 59.2 inches of rainfall annually with predominantly loam soil. Summer highs average 94°F, providing good warmth for Oregano during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Oregano root diseases.

Bossier Parish, LA (Zone 8b) Long season
244 days
Last Spring Frost March 15
244 growing days
First Fall Frost November 14
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Bossier Parish Soil Profile

Soil Type

Loam

Soil pH

6-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (100 days to spare)
Transplant: Mar 16 🍅 Harvest: May 18 – Jul 27
Recommended (50%) ✓ Fits season (104 days to spare)
Transplant: Mar 22 🍅 Harvest: May 24 – Aug 2
Safe Start (90%) ✓ Fits season (96 days to spare)
Transplant: Apr 15 🍅 Harvest: Jun 17 – Aug 26

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 Bossier Parish

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

Soil pH

Your soil pH (6.0–7.2) is within Oregano's preferred range (6.0–8.0).

Soil Texture

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

Organic Matter

Organic matter is moderate (2.8%). Annual compost additions will help Oregano.

How to Plant Oregano

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

Succession Planting Oregano

4
successive plantings in your 244-day season

Sow every 6.9 weeks. Last sowing by Aug 16 to harvest before frost.

Plant Water Budget

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

Monthly Watering Guide for Oregano

Oregano needs approximately 0.3 inches of water per week (1.3" per month). Here's how your county's rainfall compares month by month.

Month Oregano Needs Rainfall You Supplement Action
Jan 5" 0" ❄️ Dormant
Feb 5.1" 0" ❄️ Dormant
Mar 1.3" 6.3" 0" ✅ Rainfall sufficient
Apr 1.3" 5" 0" ✅ Rainfall sufficient
May 1.3" 4.7" 0" ✅ Rainfall sufficient
Jun 1.3" 4.6" 0" ✅ Rainfall sufficient
Jul 1.3" 5.6" 0" ✅ Rainfall sufficient
Aug 1.3" 5.5" 0" ✅ Rainfall sufficient
Sep 1.3" 3.8" 0" ✅ Rainfall sufficient
Oct 1.3" 4.1" 0" ✅ Rainfall sufficient
Nov 1.3" 5" 0" ✅ Rainfall sufficient
Dec 4.6" 0" ❄️ Dormant

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

Oregano 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.

Oregano needs ~1,538 GDD — county provides 5,002 GDD Excellent fit

Oregano Planting Timeline — Bossier Parish, LA

Oregano Planting Calendar

Activity When Date Range
Transplant Outdoors March 22 Mar 22 – Apr 5
Harvest May 24 May 24 – Aug 2

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

Month-by-Month Timeline

MonthActivities
January
February
March Transplant Outdoors
April Transplant Outdoors
May Harvest
June Harvest
July Harvest
August Harvest
September
October
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.3"/week · Natural rainfall sufficient

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–8 · Your soil: ideal

🗺️ USDA Zone

Zone 8b

📆 Growing Season

244 days in Bossier Parish

Growing Tips for Oregano in Bossier Parish

Direct sow Oregano outdoors after March 15 in Bossier Parish when soil has warmed and frost danger has passed.

With 59" of annual rainfall in Bossier Parish, ensure good drainage for Oregano — excess moisture can promote root rot and fungal diseases.

General growing tips

Start from seed, cuttings, or divisions. Harvest just before flowering for strongest flavor. Cut plants back to a few inches in spring to encourage vigorous new growth.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Oregano in Bossier Parish, LA?

Bossier Parish is in Zone 8b with an average last frost of March 15. Plan your Oregano planting based on this frost date — see the calendar above for exact timing.

What planting zone is Bossier Parish, LA?

Bossier Parish, Louisiana is in USDA Hardiness Zone 8b. The average last spring frost is March 15 and first fall frost is November 14.

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Your Bossier Parish Garden Planner — Free

A 24-page printable planner built for Bossier 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 Bossier 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.