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When to Plant Lavender in Red River Parish, LA

Red River Parish, Louisiana Zone 8b May

Your May planting checklist for Red River Parish, Louisiana

Your garden in Red River Parish, Louisiana is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost March 8
Avg. first frost November 16
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
Looking ahead to June
  • First harvests: lavender

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Lavender is a fragrant perennial herb with silvery foliage and purple flower spikes. It is prized for its essential oils, culinary uses, and ornamental beauty.

Red River Parish, Louisiana is in USDA Zone 8b. 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 91°F, providing good warmth for Lavender during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Lavender root diseases.

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

Soil Type

Loam

Soil pH

5.8-7.2

Drainage

Well Drained

Monthly Watering Guide for Lavender

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

Month Lavender Needs Rainfall You Supplement Action
Jan 4.3" 0" ❄️ Dormant
Feb 4.9" 0" ❄️ Dormant
Mar 4.3" 5.1" 0" ✅ Rainfall sufficient
Apr 4.3" 4.4" 0" ✅ Rainfall sufficient
May 4.3" 5.1" 0" ✅ Rainfall sufficient
Jun 4.3" 5" 0" ✅ Rainfall sufficient
Jul 4.3" 6.5" 0" ✅ Rainfall sufficient
Aug 4.3" 5.1" 0" ✅ Rainfall sufficient
Sep 4.3" 4" 0.3" 💧 Light watering
Oct 4.3" 3.9" 0.4" 💧 Light watering
Nov 4.3" 3.9" 0.4" 💧 Light watering
Dec 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 — actual needs vary with temperature, soil, and mulching.

Lavender Planting Timeline — Red River Parish, LA

Lavender Planting Calendar

Activity When Date Range
Transplant Outdoors March 15 Mar 15 – Mar 29
Harvest June 14 Jun 14 – Nov 15

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Low — drought tolerant

📅 Days to Maturity

90–200 days

🧪 Soil pH

Needs 6.5–8 · Your soil: N/A

🗺️ USDA Zone

Zone 8b

📆 Growing Season

253 days in Red River Parish

Growing Tips for Red River Parish

Plant in well-drained, sandy soil. Avoid heavy mulching around the crown. Prune after flowering but do not cut into old wood. Lavender resents wet winter conditions.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

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

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

What planting zone is Red River Parish, LA?

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

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Your Red River Parish Garden Planner — Free

A 24-page printable planner built for Red River 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 Red River 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.