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When to plant Mache in Washington County County,

Washington County County's spring Mache window runs March 7 through March 28. most warm-season crops establish quickly once soil holds above 60°F. A second sowing from September 2 to September 16 extends the harvest into fall.

When to Plant Mache in Washington County, GA

Washington County, Georgia Zone 8b June

June in the garden — Washington County, Georgia

Each item below is timed to Washington County, Georgia's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost March 21
Avg. first frost November 11
Soil temp (4") 83°F
Watering Low
Pest pressure High
Daylight 14.2 hrs
  1. Pick 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.

Washington County, Georgia is in USDA Zone 8b. The average last spring frost is March 21 and the first fall frost is November 11, giving you a growing season of approximately 235 days.

At an elevation of 277 feet, Washington County receives approximately 50.4 inches of rainfall annually with predominantly clay loam soil. Summer highs average 92°F, providing good warmth for Mache during the growing season. Clay soil retains moisture well for Mache, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Mache root diseases.

Washington County, GA (Zone 8b) Long season
235 days
Last Spring Frost March 21
235 growing days
First Fall Frost November 11
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Washington County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.3

Drainage

Well Drained

Mache Planting Risk Windows

Early Start (70% safe) ✓ Fits season (160 days to spare)
Start indoors: Feb 4 Transplant: Mar 11 🍅 Harvest: Apr 22 – May 27
Recommended (50%) ✓ Fits season (158 days to spare)
Start indoors: Feb 14 Transplant: Mar 21 🍅 Harvest: May 2 – Jun 6
Safe Start (90%) ✓ Fits season (155 days to spare)
Start indoors: Mar 4 Transplant: Apr 8 🍅 Harvest: May 20 – Jun 24

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 Washington County

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

Soil pH

Your soil pH (5.5–6.3) is more acidic than Mache prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.8%). 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 235-day season

Sow every 4.6 weeks. Last sowing by Sep 12 to harvest before frost.

For a dedicated fall crop, sow by Sep 02.

Mache Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 208 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 4.3" 0" ❄️ Dormant
Feb 4.1" 0" ❄️ Dormant
Mar 4.3" 4.6" 0" ✅ Rainfall sufficient
Apr 4.3" 3.3" 1" 💧 Light watering
May 4.3" 3.6" 0.7" 💧 Light watering
Jun 4.3" 4.7" 0" ✅ Rainfall sufficient
Jul 4.3" 5.1" 0" ✅ Rainfall sufficient
Aug 4.3" 5.4" 0" ✅ Rainfall sufficient
Sep 4.3" 4.2" 0.1" 💧 Light watering
Oct 4.3" 3.6" 0.7" 💧 Light watering
Nov 4.3" 3.9" 0.4" 💧 Light watering
Dec 3.8" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Washington 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 ~950 GDD — county provides 4,465 GDD Excellent fit

Mache Planting Timeline — Washington County, GA

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 2 Sep 2 – Sep 16

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
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Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8b

📆 Growing Season

235 days in Washington County

Growing Tips for Mache in Washington County

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

With Washington County's clay soil (31% clay), work in 3-4 inches of compost before planting Mache. Avoid tilling when soil is wet to prevent compaction.

Your generous 235.0-day season in Washington 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 Washington County, GA?

Washington County 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 Washington County, GA?

Washington County, Georgia is in USDA Hardiness Zone 8b. The average last spring frost is March 21 and first fall frost is November 11.

When should I plant Mache in Washington County, ?

In Washington County, , plant Mache after the last frost (around March 21) and before the first frost (around November 11). Best results when soil holds above 50°F.

What growing zone is Washington County, for Mache?

Washington County sits in USDA Zone 8b. Mache grows reliably in zones 2a through 10b, so it's a good fit here.

Can Mache grow in Washington County's climate?

Yes — Mache grows well in Washington County's temperate climate. Washington County averages a 235-day frost-free season, with last frost around March 21 and first frost around November 11.

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Your Washington County Garden Planner — Free

A 22-page printable planner built for Washington County (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 Washington County, GA. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.