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When to Plant Mache in Webster Parish, LA

Webster Parish, Louisiana Zone 8b May

Your May gardening checklist

A quick May briefing for Webster Parish, Louisiana gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 21
Avg. first frost November 10
Soil temp (4") 71°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
  1. Start harvesting mache

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

To set up a strong June, finish these tasks
  • First harvests: mache

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Mache (corn salad) is a cold-hardy salad green with small, rounded, tender leaves and a mild, nutty flavor. It thrives in cool weather and even overwinters in many climates.

Webster Parish, Louisiana is in USDA Zone 8b. The average last spring frost is March 21 and the first fall frost is November 10, giving you a growing season of approximately 234 days.

At an elevation of 138 feet, Webster Parish receives approximately 57 inches of rainfall annually with predominantly loam soil. Summer highs average 94°F, providing good warmth for Mache during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Mache root diseases.

Webster Parish, LA (Zone 8b) Long season
234 days
Last Spring Frost March 21
234 growing days
First Fall Frost November 10

Webster Parish Soil Profile

Soil Type

Loam

Soil pH

5.8-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (157 days to spare)
Start indoors: Feb 4 Transplant: Mar 11 🍅 Harvest: Apr 22 – May 27
Recommended (50%) ✓ Fits season (157 days to spare)
Start indoors: Feb 14 Transplant: Mar 21 🍅 Harvest: May 2 – Jun 6
Safe Start (90%) ✓ Fits season (151 days to spare)
Start indoors: Mar 8 Transplant: Apr 12 🍅 Harvest: May 24 – Jun 28

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 Webster Parish

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

Soil pH

Your soil pH (5.8–6.7) overlaps with Mache's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

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

How to Plant Mache

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Mache

7
successive plantings in your 234-day season

Sow every 4.6 weeks. Last sowing by Sep 11 to harvest before frost.

For a dedicated fall crop, sow by Sep 01.

Plant Water Budget

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

Monthly Watering Guide for Mache

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

Month Mache Needs Rainfall You Supplement Action
Jan 4.5" 0" ❄️ Dormant
Feb 5.1" 0" ❄️ Dormant
Mar 4.3" 5.5" 0" ✅ Rainfall sufficient
Apr 4.3" 4.6" 0" ✅ Rainfall sufficient
May 4.3" 4.1" 0.2" 💧 Light watering
Jun 4.3" 5.8" 0" ✅ Rainfall sufficient
Jul 4.3" 5.9" 0" ✅ Rainfall sufficient
Aug 4.3" 5" 0" ✅ Rainfall sufficient
Sep 4.3" 4.2" 0.1" 💧 Light watering
Oct 4.3" 3.7" 0.6" 💧 Light watering
Nov 4.3" 4.4" 0" ✅ Rainfall sufficient
Dec 4.3" 0" ❄️ Dormant

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

Mache 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.

Mache needs ~1,025 GDD — county provides 4,797 GDD Excellent fit

Mache Planting Timeline — Webster Parish, LA

Mache Planting Calendar

Activity When Date Range
Start Indoors February 14 Feb 14 – Feb 28
Transplant Outdoors March 21 Mar 21 – Apr 4
Direct Sow March 7 Mar 7 – Mar 28
Harvest May 2 May 2 – Jun 6
Fall Sowing September 1 Sep 1 – Sep 15

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

234 days in Webster Parish

Growing Tips for Mache in Webster Parish

Direct sow Mache outdoors after March 21 in Webster Parish when soil has warmed and frost danger has passed.

Your generous 234.0-day season in Webster Parish allows multiple plantings of Mache. Sow every 20.0 days for continuous harvest.

General growing tips

Direct sow in early spring or late summer for fall and winter harvest. Seeds need light to germinate so press gently into soil surface. Harvest whole rosettes.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Mache in Webster Parish, LA?

Webster Parish is in Zone 8b with an average last frost of March 21. Plan your Mache planting based on this frost date — see the calendar above for exact timing.

What planting zone is Webster Parish, LA?

Webster Parish, Louisiana is in USDA Hardiness Zone 8b. The average last spring frost is March 21 and first fall frost is November 10.

🌱

Your Webster Parish Garden Planner — Free

A 24-page printable planner built for Webster 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 Webster 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.