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When to Plant Sweet Corn in Ben Hill County, GA

Ben Hill County, Georgia Zone 9a May

What to do in May

Welcome to May in Zone 9a. These are the moves that will have the biggest impact on your growing season.

Avg. last frost March 9
Avg. first frost November 15
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. Collect sweet corn at their peak

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

To set up a strong June, finish these tasks
  • First harvests: sweet corn

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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.

Ben Hill County, Georgia is in USDA Zone 9a. The average last spring frost is March 9 and the first fall frost is November 15, giving you a growing season of approximately 251 days.

At an elevation of 261 feet, Ben Hill County receives approximately 56.3 inches of rainfall annually with predominantly clay loam soil. Summer highs average 96°F, so Sweet Corn may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Sweet Corn, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Sweet Corn root diseases.

Ben Hill County, GA (Zone 9a) Long season
251 days
Last Spring Frost March 9
251 growing days
First Fall Frost November 15

Ben Hill County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.4

Drainage

Well Drained

Monthly Watering Guide for Sweet Corn

Sweet Corn needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Sweet Corn Needs Rainfall You Supplement Action
Jan 4.8" 0" ❄️ Dormant
Feb 4.5" 0" ❄️ Dormant
Mar 4.3" 5.7" 0" ✅ Rainfall sufficient
Apr 4.3" 4.6" 0" ✅ Rainfall sufficient
May 4.3" 4.7" 0" ✅ Rainfall sufficient
Jun 4.3" 5.3" 0" ✅ Rainfall sufficient
Jul 4.3" 6.2" 0" ✅ Rainfall sufficient
Aug 4.3" 5.2" 0" ✅ Rainfall sufficient
Sep 4.3" 3.5" 0.8" 💧 Light watering
Oct 4.3" 3.5" 0.8" 💧 Light watering
Nov 4.3" 4.5" 0" ✅ Rainfall sufficient
Dec 3.9" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Ben Hill County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Sweet Corn Planting Timeline — Ben Hill County, GA

Sweet Corn Planting Calendar

Activity When Date Range
Direct Sow March 16 Mar 16 – Apr 6
Harvest May 18 May 18 – Jun 29

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

Month-by-Month Timeline

MonthActivities
January
February
March Direct Sow
April Direct Sow
May Harvest
June Harvest
July
August
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 9a

📆 Growing Season

251 days in Ben Hill County

Growing Tips for Ben Hill 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 Ben Hill County, GA?

Ben Hill County is in Zone 9a with an average last frost of March 9. Plan your Sweet Corn planting based on this frost date — see the calendar above for exact timing.

What planting zone is Ben Hill County, GA?

Ben Hill County, Georgia is in USDA Hardiness Zone 9a. The average last spring frost is March 9 and first fall frost is November 15.

🌱

Your Ben Hill County Garden Planner — Free

A 24-page printable planner built for Ben Hill County (Zone 9a). 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 Ben Hill County, GA. 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.