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When to Plant Mache in Greene County, GA

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.

Greene County, Georgia is in USDA Zone 7b. The average last spring frost is April 8 and the first fall frost is October 31, giving you a growing season of approximately 206 days.

At an elevation of 60 feet, Greene County receives approximately 52.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 88ยฐF, 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.

Greene County, GA (Zone 7b) Long season
206 days
Last Spring Frost April 8
206 growing days
First Fall Frost October 31

Greene County Soil Profile

Soil Type

Clay Loam

Soil pH

5.4-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (130 days to spare)
Start indoors: Feb 23 Transplant: Mar 30 🍅 Harvest: May 11 – Jun 15
Recommended (50%) ✓ Fits season (129 days to spare)
Start indoors: Mar 4 Transplant: Apr 8 🍅 Harvest: May 20 – Jun 24
Safe Start (90%) ✓ Fits season (130 days to spare)
Start indoors: Mar 18 Transplant: Apr 22 🍅 Harvest: Jun 3 – Jul 8

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 Greene County

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

Soil pH

Your soil pH (5.4โ€“6.5) is more acidic than Mache prefers (6.0โ€“7.5). Add garden lime to raise pH.

Soil Texture

The clay loam soil in Greene County is excellent for Mache โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.5%). 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

6
successive plantings in your 206-day season

Sow every 4.6 weeks. Last sowing by Sep 01 to harvest before frost.

For a dedicated fall crop, sow by Aug 22.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.1″/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 โ€” 4.2" 0" โ„๏ธ Dormant
Feb โ€” 4.1" 0" โ„๏ธ Dormant
Mar โ€” 4.6" 0" โ„๏ธ Dormant
Apr 4.3" 4.3" 0" โœ… Rainfall sufficient
May 4.3" 3.8" 0.5" ๐Ÿ’ง Light watering
Jun 4.3" 4.6" 0" โœ… Rainfall sufficient
Jul 4.3" 5.7" 0" โœ… Rainfall sufficient
Aug 4.3" 5.4" 0" โœ… Rainfall sufficient
Sep 4.3" 4.4" 0" โœ… Rainfall sufficient
Oct 4.3" 3.1" 1.2" ๐Ÿ’ง Light watering
Nov โ€” 4" 0" โ„๏ธ Dormant
Dec โ€” 4.4" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Aprโ€“Oct in Greene County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 3,296 GDD Excellent fit

Mache Planting Timeline โ€” Greene County, GA

Mache Planting Calendar

Activity When Date Range
Start Indoors March 4 Mar 4 โ€“ Mar 18
Transplant Outdoors April 8 Apr 8 โ€“ Apr 22
Direct Sow March 25 Mar 25 โ€“ Apr 15
Harvest May 20 May 20 โ€“ Jun 24
Fall Sowing August 22 Aug 22 โ€“ Sep 5

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Partial Shade (3-6 hours)

๐Ÿ’ง Water

1"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

40โ€“60 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: too_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

206 days in Greene County

Growing Tips for Mache in Greene County

Direct sow Mache outdoors after April 08 in Greene County when soil has warmed and frost danger has passed.

With Greene County's clay soil (29% clay), work in 3-4 inches of compost before planting Mache. Avoid tilling when soil is wet to prevent compaction.

Your generous 206.0-day season in Greene 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 Greene County, GA?

Greene County is in Zone 7b with an average last frost of April 8. Plan your Mache planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Greene County, GA?

Greene County, Georgia is in USDA Hardiness Zone 7b. The average last spring frost is April 8 and first fall frost is October 31.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Greene County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

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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 Greene County, GA. Local conditions may vary. Last updated: April 2026.