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When to Plant Mache in Edgefield County, SC

Edgefield County, South Carolina Zone 8a May

May in the garden — Edgefield County, South Carolina

May is a pivotal month for Edgefield County, South Carolina gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost March 25
Avg. first frost November 7
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 13.8 hrs
  1. It's harvest week for mache

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

Before June arrives, get these ready
  • 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.

Edgefield County, South Carolina is in USDA Zone 8a. The average last spring frost is March 25 and the first fall frost is November 7, giving you a growing season of approximately 227 days.

At an elevation of 182 feet, Edgefield County receives approximately 55 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 91°F, providing good warmth for Mache during the growing season. Sandy soil warms quickly in spring — great for early planting — but Mache will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Mache root diseases.

Edgefield County, SC (Zone 8a) Long season
227 days
Last Spring Frost March 25
227 growing days
First Fall Frost November 7
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Edgefield County Soil Profile

Soil Type

Sandy Loam

Soil pH

4.9-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (150 days to spare)
Start indoors: Feb 12 Transplant: Mar 19 🍅 Harvest: Apr 30 – Jun 4
Recommended (50%) ✓ Fits season (150 days to spare)
Start indoors: Feb 18 Transplant: Mar 25 🍅 Harvest: May 6 – Jun 10
Safe Start (90%) ✓ Fits season (144 days to spare)
Start indoors: Mar 12 Transplant: Apr 16 🍅 Harvest: May 28 – Jul 2

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 Edgefield County

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

Soil pH

Your soil pH (4.9–6.3) is more acidic than Mache prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

Sandy soil in Edgefield County warms quickly in spring but drains fast. Mache will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Mache.

Organic Matter

Organic matter is moderate (2.2%). 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 227-day season

Sow every 4.6 weeks. Last sowing by Sep 08 to harvest before frost.

For a dedicated fall crop, sow by Aug 29.

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 4.3" 0" ❄️ Dormant
Feb 4.7" 0" ❄️ Dormant
Mar 4.3" 4.6" 0" ✅ Rainfall sufficient
Apr 4.3" 4.1" 0.2" 💧 Light watering
May 4.3" 4.4" 0" ✅ Rainfall sufficient
Jun 4.3" 5.5" 0" ✅ Rainfall sufficient
Jul 4.3" 5.2" 0" ✅ Rainfall sufficient
Aug 4.3" 5.5" 0" ✅ Rainfall sufficient
Sep 4.3" 3.8" 0.5" 💧 Light watering
Oct 4.3" 4" 0.3" 💧 Light watering
Nov 4.3" 4.7" 0" ✅ Rainfall sufficient
Dec 4.2" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Edgefield 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 ~912 GDD — county provides 4,142 GDD Excellent fit

Mache Planting Timeline — Edgefield County, SC

Mache Planting Calendar

Activity When Date Range
Start Indoors February 18 Feb 18 – Mar 4
Transplant Outdoors March 25 Mar 25 – Apr 8
Direct Sow March 11 Mar 11 – Apr 1
Harvest May 6 May 6 – Jun 10
Fall Sowing August 29 Aug 29 – Sep 12

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors Transplant Outdoors Direct Sow
April Transplant Outdoors Direct Sow
May Harvest
June Harvest
July
August Fall Sowing
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: too_acidic

🗺️ USDA Zone

Zone 8a

📆 Growing Season

227 days in Edgefield County

Growing Tips for Mache in Edgefield County

Direct sow Mache outdoors after March 25 in Edgefield County when soil has warmed and frost danger has passed.

Sandy soil in Edgefield County dries quickly — mulch Mache with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Your generous 227.0-day season in Edgefield 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 Edgefield County, SC?

Edgefield County is in Zone 8a with an average last frost of March 25. Plan your Mache planting based on this frost date — see the calendar above for exact timing.

What planting zone is Edgefield County, SC?

Edgefield County, South Carolina is in USDA Hardiness Zone 8a. The average last spring frost is March 25 and first fall frost is November 7.

🌱

Your Edgefield County Garden Planner — Free

A 24-page printable planner built for Edgefield 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 Edgefield County, SC. 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.