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When to Plant Mache in Grayson County, TX

Grayson County, Texas Zone 8a May

Your May planting checklist for Grayson County, Texas

Your garden in Grayson County, Texas is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost March 14
Avg. first frost November 18
Soil temp (4") 70°F
Watering Low
Pest pressure Moderate
Daylight 13.7 hrs
  1. Bring in the mache

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

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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.

Grayson County, Texas is in USDA Zone 8a. The average last spring frost is March 14 and the first fall frost is November 18, giving you a growing season of approximately 249 days.

At an elevation of 248 feet, Grayson County receives approximately 71.2 inches of rainfall annually with predominantly loam soil. Summer highs average 88°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.

Grayson County, TX (Zone 8a) Long season
249 days
Last Spring Frost March 14
249 growing days
First Fall Frost November 18
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Grayson County Soil Profile

Soil Type

Loam

Soil pH

6.6-7.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (172 days to spare)
Start indoors: Jan 30 Transplant: Mar 6 🍅 Harvest: Apr 17 – May 22
Recommended (50%) ✓ Fits season (172 days to spare)
Start indoors: Feb 7 Transplant: Mar 14 🍅 Harvest: Apr 25 – May 30
Safe Start (90%) ✓ Fits season (155 days to spare)
Start indoors: Mar 9 Transplant: Apr 13 🍅 Harvest: May 25 – Jun 29

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 Grayson County

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

Soil pH

Your soil pH (6.6–7.3) is within Mache's preferred range (6.0–7.5).

Soil Texture

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

Organic Matter

Organic matter is moderate (2.1%). 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 249-day season

Sow every 4.6 weeks. Last sowing by Sep 19 to harvest before frost.

For a dedicated fall crop, sow by Sep 09.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.2″/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 1.9" 0" ❄️ Dormant
Feb 2.2" 0" ❄️ Dormant
Mar 4.3" 3.9" 0.4" 💧 Light watering
Apr 4.3" 8.5" 0" ✅ Rainfall sufficient
May 4.3" 11.3" 0" ✅ Rainfall sufficient
Jun 4.3" 12.4" 0" ✅ Rainfall sufficient
Jul 4.3" 9.3" 0" ✅ Rainfall sufficient
Aug 4.3" 7.7" 0" ✅ Rainfall sufficient
Sep 4.3" 6.2" 0" ✅ Rainfall sufficient
Oct 4.3" 4.1" 0.2" 💧 Light watering
Nov 4.3" 2.1" 2.2" 🚿 Regular watering
Dec 1.6" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Grayson County). 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 ~800 GDD — county provides 3,984 GDD Excellent fit

Mache Planting Timeline — Grayson County, TX

Mache Planting Calendar

Activity When Date Range
Start Indoors February 7 Feb 7 – Feb 21
Transplant Outdoors March 14 Mar 14 – Mar 28
Direct Sow February 28 Feb 28 – Mar 21
Harvest April 25 Apr 25 – May 30
Fall Sowing September 9 Sep 9 – Sep 23

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

Month-by-Month Timeline

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

🗺️ USDA Zone

Zone 8a

📆 Growing Season

249 days in Grayson County

Growing Tips for Mache in Grayson County

Direct sow Mache outdoors after March 14 in Grayson County when soil has warmed and frost danger has passed.

Your generous 249.0-day season in Grayson County 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 Grayson County, TX?

Grayson County is in Zone 8a with an average last frost of March 14. Plan your Mache planting based on this frost date — see the calendar above for exact timing.

What planting zone is Grayson County, TX?

Grayson County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 14 and first fall frost is November 18.

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Your Grayson County Garden Planner — Free

A 24-page printable planner built for Grayson County (Zone 8a). 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 Grayson County, TX. 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.