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When to Plant Mache in Charlotte County, FL

Charlotte County, Florida Zone 10a May

What to do in May

We've pulled the most time-sensitive tasks for Charlotte County, Florida this May and put them front and centre. Tackle them in order.

Avg. last frost January 29
Soil temp (4") 82°F
Watering Low
Pest pressure High
Daylight 13.3 hrs

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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.

Charlotte County, Florida is in USDA Zone 10a. The average last spring frost is January 29 and the first fall frost is April 15, giving you a growing season of approximately 76 days.

At an elevation of 487 feet, Charlotte County receives approximately 59.2 inches of rainfall annually with predominantly sand soil. Summer highs average 86°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.

Charlotte County, FL (Zone 10a) Very short season
76 days
Last Spring Frost January 29
76 growing days
First Fall Frost April 15

Charlotte County Soil Profile

Soil Type

Sand

Soil pH

5-5.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (192 days to spare)
Start indoors: Dec 22 Transplant: Jan 19 🍅 Harvest: Mar 2 – Apr 6
Recommended (50%) ✓ Fits season (182 days to spare)
Start indoors: Jan 1 Transplant: Jan 29 🍅 Harvest: Mar 12 – Apr 16
Safe Start (90%) ✓ Fits season (150 days to spare)
Start indoors: Feb 2 Transplant: Mar 2 🍅 Harvest: Apr 13 – May 18

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 Charlotte County

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

Soil pH

Your soil pH (5.0–5.8) is more acidic than Mache prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

Sandy soil in Charlotte 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 low (1.5%). Add 2-3 inches of compost before planting Mache.

How to Plant Mache

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

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.7″/week
You supply
0.7″/week
Watering frequency 2-3 times/week
Season total 2,412 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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" 2.8" 1.5" 💧 Light watering
Feb 4.3" 3.5" 0.8" 💧 Light watering
Mar 4.3" 3.6" 0.7" 💧 Light watering
Apr 4.3" 2.8" 1.5" 💧 Light watering
May 4.3" 4.5" 0" ✅ Rainfall sufficient
Jun 4.3" 7.4" 0" ✅ Rainfall sufficient
Jul 4.3" 10" 0" ✅ Rainfall sufficient
Aug 4.3" 8.5" 0" ✅ Rainfall sufficient
Sep 4.3" 6.9" 0" ✅ Rainfall sufficient
Oct 4.3" 4.6" 0" ✅ Rainfall sufficient
Nov 2.3" 0" ❄️ Dormant
Dec 2.3" 0" ❄️ Dormant

Water needs are for active growing months only (Jan–Oct in Charlotte 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 ~725 GDD — county provides 5,292 GDD Excellent fit

Mache Planting Timeline — Charlotte County, FL

Mache Planting Calendar

Activity When Date Range
Start Indoors January 1 Jan 1 – Jan 15
Transplant Outdoors January 29 Jan 29 – Feb 12
Direct Sow January 8 Jan 8 – Jan 29
Harvest March 12 Mar 12 – Apr 16
Fall Sowing February 18 Feb 18 – Mar 4

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · 2-3 times/week

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 10a

📆 Growing Season

76 days in Charlotte County

Growing Tips for Mache in Charlotte County

Direct sow Mache outdoors after January 29 in Charlotte County when soil has warmed and frost danger has passed.

Sandy soil in Charlotte 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 365.0-day season in Charlotte 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 Charlotte County, FL?

Charlotte County is in Zone 10a with an average last frost of January 29. Plan your Mache planting based on this frost date — see the calendar above for exact timing.

What planting zone is Charlotte County, FL?

Charlotte County, Florida is in USDA Hardiness Zone 10a. The average last spring frost is January 29 and first fall frost is .

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Your Charlotte County Garden Planner — Free

A 24-page printable planner built for Charlotte County (Zone 10a). 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 Charlotte County, FL. 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.