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When to Plant Sweet Corn in Athens County, OH

Sweet corn is bred for high sugar content in its kernels, which convert to starch rapidly after harvest. Modern supersweet varieties hold their sweetness longer.

Athens County, Ohio is in USDA Zone 6b. The average last spring frost is April 20 and the first fall frost is October 26, giving you a growing season of approximately 189 days.

At an elevation of 645 feet, Athens County receives approximately 39.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Sweet Corn during the growing season.

Athens County, OH (Zone 6b) Moderate season
189 days
Last Spring Frost April 20
189 growing days
First Fall Frost October 26

Athens County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Sweet Corn Planting Timeline — Athens County, OH

Sweet Corn Planting Calendar

Activity When Date Range
Direct Sow April 27 Apr 27 – May 18
Harvest June 29 Jun 29 – Aug 10

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 6b

📆 Growing Season

189 days in Athens County

Growing Tips for Athens County

Plant in blocks of at least 4 rows for wind pollination. Direct sow after soil is warm. Isolate supersweet varieties from other corn types to prevent cross-pollination.

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Sweet Corn in Athens County, OH?

Athens County is in Zone 6b with an average last frost of April 20. Plan your Sweet Corn planting based on this frost date — see the calendar above for exact timing.

What planting zone is Athens County, OH?

Athens County, Ohio is in USDA Hardiness Zone 6b. The average last spring frost is April 20 and first fall frost is October 26.

🌱

Your Athens County Garden Planner — Free

A 22-page printable planner built for Athens County (Zone 6b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Athens County, OH. Local conditions may vary. Last updated: July 2026.

Sources & credits

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