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When to Plant Corn in Mecklenburg County, NC

Corn is a warm-season grass grown for its sweet ears, which are best eaten soon after harvest. It is wind-pollinated and must be planted in blocks for good kernel fill.

Mecklenburg County, North Carolina is in USDA Zone 7b. The average last spring frost is March 30 and the first fall frost is November 3, giving you a growing season of approximately 218 days.

At an elevation of 913 feet, Mecklenburg County receives approximately 49.7 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90ยฐF, providing good warmth for Corn during the growing season. Clay soil retains moisture well for Corn, but amend with compost to improve drainage and prevent root rot.

Mecklenburg County, NC (Zone 7b) Long season
218 days
Last Spring Frost March 30
218 growing days
First Fall Frost November 3

Mecklenburg County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (102 days to spare)
Transplant: Mar 22 🍅 Harvest: May 24 – Jul 19
Recommended (50%) ✓ Fits season (99 days to spare)
Transplant: Mar 30 🍅 Harvest: Jun 1 – Jul 27
Safe Start (90%) ✓ Fits season (95 days to spare)
Transplant: Apr 16 🍅 Harvest: Jun 18 – Aug 13

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.

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
Corn needs ~1,400 GDD — county provides 3,815 GDD Excellent fit

Corn Planting Timeline โ€” Mecklenburg County, NC

Corn Planting Calendar

Activity When Date Range
Direct Sow April 6 Apr 6 โ€“ Apr 27
Harvest June 8 Jun 8 โ€“ Aug 3

Plant 1" deep ยท 12" apart ยท Rows 36" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April Direct Sow
May โ€”
June Harvest
July Harvest
August Harvest
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

60โ€“100 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 7b

Growing Season

218 days

Growing Tips for Mecklenburg County

Plant in blocks of at least 4 rows rather than single rows for proper pollination. Direct sow after soil reaches 60F. Side-dress with nitrogen when plants are knee-high.

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Celery

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Frequently Asked Questions

When should I plant Corn in Mecklenburg County, NC?

Mecklenburg County is in Zone 7b with an average last frost of March 30. Plan your Corn planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Mecklenburg County, NC?

Mecklenburg County, North Carolina is in USDA Hardiness Zone 7b. The average last spring frost is March 30 and first fall frost is November 3.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Mecklenburg 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 Mecklenburg County, NC. Local conditions may vary. Last updated: April 2026.