Blog

When to Plant Mint in Ouachita Parish, LA

Ouachita Parish, Louisiana Zone 8b May

Your May game plan for Ouachita Parish, Louisiana

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost March 10
Avg. first frost November 12
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
  1. Basket week: mint

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

Looking ahead to June
  • First harvests: mint

Instant PDF download. No spam, unsubscribe any time.

Mint is a vigorous perennial herb with refreshing, aromatic leaves used in teas, cocktails, and cooking. It spreads aggressively by underground runners.

Ouachita Parish, Louisiana is in USDA Zone 8b. The average last spring frost is March 10 and the first fall frost is November 12, giving you a growing season of approximately 247 days.

At an elevation of 340 feet, Ouachita Parish receives approximately 53.7 inches of rainfall annually with predominantly loam soil. Summer highs average 92°F, providing good warmth for Mint during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Mint root diseases.

Ouachita Parish, LA (Zone 8b) Long season
247 days
Last Spring Frost March 10
247 growing days
First Fall Frost November 12

Ouachita Parish Soil Profile

Soil Type

Loam

Soil pH

6.3-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (104 days to spare)
Transplant: Mar 11 🍅 Harvest: May 13 – Jul 22
Recommended (50%) ✓ Fits season (107 days to spare)
Transplant: Mar 17 🍅 Harvest: May 19 – Jul 28
Safe Start (90%) ✓ Fits season (97 days to spare)
Transplant: Apr 14 🍅 Harvest: Jun 16 – Aug 25

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 Ouachita Parish

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

Soil pH

Your soil pH (6.3–6.8) is within Mint's preferred range (6.0–7.0).

Soil Texture

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

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Mint.

How to Plant Mint

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

Succession Planting Mint

4
successive plantings in your 247-day season

Sow every 6.9 weeks. Last sowing by Aug 14 to harvest before frost.

Plant Water Budget

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

Monthly Watering Guide for Mint

Mint needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.

Month Mint Needs Rainfall You Supplement Action
Jan 5.1" 0" ❄️ Dormant
Feb 4.9" 0" ❄️ Dormant
Mar 3" 4.4" 0" ✅ Rainfall sufficient
Apr 3" 4" 0" ✅ Rainfall sufficient
May 3" 4.8" 0" ✅ Rainfall sufficient
Jun 3" 5" 0" ✅ Rainfall sufficient
Jul 3" 5" 0" ✅ Rainfall sufficient
Aug 3" 4.9" 0" ✅ Rainfall sufficient
Sep 3" 3.6" 0" ✅ Rainfall sufficient
Oct 3" 3.6" 0" ✅ Rainfall sufficient
Nov 3" 4.2" 0" ✅ Rainfall sufficient
Dec 4.4" 0" ❄️ Dormant

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

Mint 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.

Mint needs ~1,425 GDD — county provides 4,693 GDD Excellent fit

Mint Planting Timeline — Ouachita Parish, LA

Mint Planting Calendar

Activity When Date Range
Transplant Outdoors March 17 Mar 17 – Mar 31
Harvest May 19 May 19 – Jul 28

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.7"/week · Natural rainfall sufficient

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: ideal

🗺️ USDA Zone

Zone 8b

📆 Growing Season

247 days in Ouachita Parish

Growing Tips for Mint in Ouachita Parish

Direct sow Mint outdoors after March 10 in Ouachita Parish when soil has warmed and frost danger has passed.

General growing tips

Always grow mint in containers or with underground barriers to control spreading. Harvest regularly to keep plants compact. Cut plants back in late summer for a fresh fall flush.

Companion Planting

Good Companions

Avoid Planting Near

  • Parsley

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Mint in Ouachita Parish, LA?

Ouachita Parish is in Zone 8b with an average last frost of March 10. Plan your Mint planting based on this frost date — see the calendar above for exact timing.

What planting zone is Ouachita Parish, LA?

Ouachita Parish, Louisiana is in USDA Hardiness Zone 8b. The average last spring frost is March 10 and first fall frost is November 12.

🌱

Your Ouachita Parish Garden Planner — Free

A 24-page printable planner built for Ouachita 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.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Ouachita 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.