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When to Plant Basil in Red River Parish, LA

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.

Red River Parish, Louisiana is in USDA Zone 8a. The average last spring frost is March 8 and the first fall frost is November 16, giving you a growing season of approximately 253 days.

At an elevation of 477 feet, Red River Parish receives approximately 56.4 inches of rainfall annually with predominantly loam soil. Summer highs average 91Β°F, providing good warmth for Basil during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Basil root diseases.

Red River Parish, LA (Zone 8a) Long season
253 days
Last Spring Frost March 8
253 growing days
First Fall Frost November 16

Red River Parish Soil Profile

Soil Type

Loam

Soil pH

5.8-7.2

Drainage

Well Drained

Monthly Watering Guide for Basil

Basil needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Basil Needs Rainfall You Supplement Action
Jan β€” 4.3" 0" ❄️ Dormant
Feb β€” 4.9" 0" ❄️ Dormant
Mar 4.3" 5.1" 0" βœ… Rainfall sufficient
Apr 4.3" 4.4" 0" βœ… Rainfall sufficient
May 4.3" 5.1" 0" βœ… Rainfall sufficient
Jun 4.3" 5" 0" βœ… Rainfall sufficient
Jul 4.3" 6.5" 0" βœ… Rainfall sufficient
Aug 4.3" 5.1" 0" βœ… Rainfall sufficient
Sep 4.3" 4" 0.3" πŸ’§ Light watering
Oct 4.3" 3.9" 0.4" πŸ’§ Light watering
Nov 4.3" 3.9" 0.4" πŸ’§ Light watering
Dec β€” 4.1" 0" ❄️ Dormant

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

Basil Planting Timeline β€” Red River Parish, LA

Basil Planting Calendar

Activity When Date Range
Start Indoors January 18 Jan 18 – Feb 1
Transplant Outdoors March 22 Mar 22 – Apr 5
Direct Sow March 15 Mar 15 – Apr 5
Harvest May 17 May 17 – Jul 19

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

Month-by-Month Timeline

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

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

Moderate β€” regular watering

πŸ“… Days to Maturity

50–75 days

πŸ§ͺ Soil pH

Needs 6–7 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 8a

πŸ“† Growing Season

253 days in Red River Parish

Growing Tips for Red River Parish

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.

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 35Β°F, under 45% humidity.

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

Frequently Asked Questions

When should I plant Basil in Red River Parish, LA?

Red River Parish is in Zone 8a with an average last frost of March 8. Plan your Basil planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Red River Parish, LA?

Red River Parish, Louisiana is in USDA Hardiness Zone 8a. The average last spring frost is March 8 and first fall frost is November 16.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Red River Parish gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Red River Parish, LA. Local conditions may vary. Last updated: April 2026.