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When to Plant Thyme in Natchitoches Parish, LA

Natchitoches Parish, Louisiana Zone 9a April

Your April game plan for Natchitoches Parish, Louisiana

Each item below is timed to Natchitoches Parish, Louisiana's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost March 13
Avg. first frost November 12
Soil temp (4") 64°F
Watering Low
Pest pressure High
Daylight 12.8 hrs
Get ahead of May
  • First harvests: thyme

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Thyme is a low-growing perennial herb with tiny, aromatic leaves and a warm, earthy flavor. It is one of the most versatile culinary and medicinal herbs.

Natchitoches Parish, Louisiana is in USDA Zone 9a. The average last spring frost is March 13 and the first fall frost is November 12, giving you a growing season of approximately 244 days.

At an elevation of 227 feet, Natchitoches Parish receives approximately 49.2 inches of rainfall annually with predominantly loam soil. Summer highs average 91°F, providing good warmth for Thyme during the growing season.

Natchitoches Parish, LA (Zone 9a) Long season
244 days
Last Spring Frost March 13
244 growing days
First Fall Frost November 12

Natchitoches Parish Soil Profile

Soil Type

Loam

Soil pH

6.2-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (102 days to spare)
Transplant: Mar 11 🍅 Harvest: May 20 – Jul 22
Recommended (50%) ✓ Fits season (104 days to spare)
Transplant: Mar 20 🍅 Harvest: May 29 – Jul 31
Safe Start (90%) ✓ Fits season (96 days to spare)
Transplant: Apr 16 🍅 Harvest: Jun 25 – Aug 27

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 Natchitoches Parish

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

Soil pH

Your soil pH (6.2–7.0) is within Thyme's preferred range (6.0–8.0).

Soil Texture

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

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help Thyme.

How to Plant Thyme

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

Succession Planting Thyme

4
successive plantings in your 244-day season

Sow every 8 weeks. Last sowing by Aug 14 to harvest before frost.

Plant Water Budget

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

Monthly Watering Guide for Thyme

Thyme 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 Thyme Needs Rainfall You Supplement Action
Jan 4.2" 0" ❄️ Dormant
Feb 3.8" 0" ❄️ Dormant
Mar 1.3" 4.9" 0" ✅ Rainfall sufficient
Apr 1.3" 3.9" 0" ✅ Rainfall sufficient
May 1.3" 3.7" 0" ✅ Rainfall sufficient
Jun 1.3" 4.5" 0" ✅ Rainfall sufficient
Jul 1.3" 5.2" 0" ✅ Rainfall sufficient
Aug 1.3" 4.8" 0" ✅ Rainfall sufficient
Sep 1.3" 3.9" 0" ✅ Rainfall sufficient
Oct 1.3" 2.7" 0" ✅ Rainfall sufficient
Nov 1.3" 3.8" 0" ✅ Rainfall sufficient
Dec 3.7" 0" ❄️ Dormant

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

Thyme 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.

Thyme needs ~1,460 GDD — county provides 4,453 GDD Excellent fit

Thyme Planting Timeline — Natchitoches Parish, LA

Thyme Planting Calendar

Activity When Date Range
Transplant Outdoors March 20 Mar 20 – Apr 3
Harvest May 29 May 29 – Jul 31

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
September
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.3"/week · Natural rainfall sufficient

📅 Days to Maturity

70–90 days

🧪 Soil pH

Needs 6–8 · Your soil: ideal

🗺️ USDA Zone

Zone 9a

📆 Growing Season

244 days in Natchitoches Parish

Growing Tips for Thyme in Natchitoches Parish

Direct sow Thyme outdoors after March 13 in Natchitoches Parish when soil has warmed and frost danger has passed.

General growing tips

Start from seed, cuttings, or divisions. Plant in well-drained, lean soil. Prune lightly after flowering. Replace plants every 3-4 years when they become woody.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Thyme in Natchitoches Parish, LA?

Natchitoches Parish is in Zone 9a with an average last frost of March 13. Plan your Thyme planting based on this frost date — see the calendar above for exact timing.

What planting zone is Natchitoches Parish, LA?

Natchitoches Parish, Louisiana is in USDA Hardiness Zone 9a. The average last spring frost is March 13 and first fall frost is November 12.

🌱

Your Natchitoches Parish Garden Planner — Free

A 24-page printable planner built for Natchitoches Parish (Zone 9a). 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 Natchitoches Parish, LA. Local conditions may vary. Last updated: April 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.