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When to Plant Basil in West Feliciana Parish, LA

West Feliciana Parish, Louisiana Zone 9a May

West Feliciana Parish, Louisiana gardeners: here's your May plan

Here's what deserves your attention in West Feliciana Parish, Louisiana this month. Everything below is tailored to Zone 9a and timed around your local frost dates.

Avg. last frost February 21
Avg. first frost November 26
Soil temp (4") 71°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. It's harvest week for basil

    Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.

A few tasks this May that'll pay off in June
  • First harvests: basil

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Basil is a fragrant warm-season herb essential to Italian and Thai cuisines. It comes in many varieties including sweet, Thai, purple, and lemon types.

West Feliciana Parish, Louisiana is in USDA Zone 9a. The average last spring frost is February 21 and the first fall frost is November 26, giving you a growing season of approximately 278 days.

At an elevation of 225 feet, West Feliciana Parish receives approximately 60.1 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96°F, so Basil may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Basil will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Basil root diseases.

West Feliciana Parish, LA (Zone 9a) Year-round
278 days
Last Spring Frost February 21
278 growing days
First Fall Frost November 26

West Feliciana Parish Soil Profile

Soil Type

Sandy Loam

Soil pH

5.1-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (153 days to spare)
Start indoors: Jan 2 Transplant: Feb 20 🍅 Harvest: Apr 17 – Jun 19
Recommended (50%) ✓ Fits season (152 days to spare)
Start indoors: Jan 10 Transplant: Feb 28 🍅 Harvest: Apr 25 – Jun 27
Safe Start (90%) ✓ Fits season (153 days to spare)
Start indoors: Jan 28 Transplant: Mar 18 🍅 Harvest: May 13 – Jul 15

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 West Feliciana Parish

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

Soil pH

Your soil pH (5.1–6.2) is more acidic than Basil prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in West Feliciana Parish warms quickly in spring but drains fast. Basil will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Basil.

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Basil.

How to Plant Basil

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

Succession Planting Basil

6
successive plantings in your 278-day season

Sow every 5.7 weeks. Last sowing by Sep 12 to harvest before frost.

Plant Water Budget

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

Monthly Watering Guide for Basil

Basil 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 Basil Needs Rainfall You Supplement Action
Jan 5.3" 0" ❄️ Dormant
Feb 2.6" 5" 0" ✅ Rainfall sufficient
Mar 2.6" 5.5" 0" ✅ Rainfall sufficient
Apr 2.6" 4.5" 0" ✅ Rainfall sufficient
May 2.6" 4.1" 0" ✅ Rainfall sufficient
Jun 2.6" 5.3" 0" ✅ Rainfall sufficient
Jul 2.6" 6.1" 0" ✅ Rainfall sufficient
Aug 2.6" 6.4" 0" ✅ Rainfall sufficient
Sep 2.6" 4.8" 0" ✅ Rainfall sufficient
Oct 2.6" 4" 0" ✅ Rainfall sufficient
Nov 2.6" 4.5" 0" ✅ Rainfall sufficient
Dec 4.6" 0" ❄️ Dormant

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

Basil 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.

Basil needs ~1,375 GDD — county provides 6,138 GDD Excellent fit

Basil Planting Timeline — West Feliciana Parish, LA

Basil Planting Calendar

Activity When Date Range
Start Indoors January 10 Jan 10 – Jan 24
Transplant Outdoors February 28 Feb 28 – Mar 14
Direct Sow February 28 Feb 28 – Mar 21
Harvest April 25 Apr 25 – Jun 27

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.6"/week · Natural rainfall sufficient

📅 Days to Maturity

50–75 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

278 days in West Feliciana Parish

Growing Tips for Basil in West Feliciana Parish

Direct sow Basil outdoors after February 21 in West Feliciana Parish when soil has warmed and frost danger has passed.

Sandy soil in West Feliciana Parish dries quickly — mulch Basil with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 96°F in West Feliciana Parish, provide afternoon shade for Basil and water deeply in the morning.

General growing tips

Start seeds indoors or direct sow after last frost. Pinch flower buds to extend leaf production. Harvest leaves from the top down, cutting just above a leaf pair.

Recommended Basil Varieties for West Feliciana Parish

Downy mildew-resistant basil for your humid climate

Prospera (DM-resistant) Amazel Eleonora

Companion Planting

Good Companions

Avoid Planting Near

  • Rue
  • Sage

Check more plant combinations with our Companion Planting Checker →

🌾 Save Your Own Basil Seeds
Life Cycle Annual
Pollination Self-Pollinating
How to Collect Let flower spikes dry brown on the plant.
Storage Store airtight; viable 5 years at 35°F, under 45% humidity.

Isolate 150 ft between varieties. Different basil species can cross.

Frequently Asked Questions

When should I plant Basil in West Feliciana Parish, LA?

West Feliciana Parish is in Zone 9a with an average last frost of February 21. Plan your Basil planting based on this frost date — see the calendar above for exact timing.

What planting zone is West Feliciana Parish, LA?

West Feliciana Parish, Louisiana is in USDA Hardiness Zone 9a. The average last spring frost is February 21 and first fall frost is November 26.

🌱

Your West Feliciana Parish Garden Planner — Free

A 24-page printable planner built for West Feliciana 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 West Feliciana 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.