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When to plant Corn in Clayton County, GA

Plant Corn in Clayton County from April 4 to April 25 in spring. Clayton County sits in USDA Zone 8b, with last frost around March 28 and first frost on November 3.

When to Plant Corn in Clayton County, GA

Corn

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.

Clayton County, Georgia is in USDA Zone 8b. The average last spring frost is March 28 and the first fall frost is November 3, giving you a growing season of approximately 220 days.

At an elevation of 136 feet, Clayton County receives approximately 56.2 inches of rainfall annually with predominantly clay loam soil. Summer highs average 92°F, 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. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Corn root diseases.

Clayton County, GA (Zone 8b) Long season
220 days
Last Spring Frost March 28
220 growing days
First Fall Frost November 3

Clayton County Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.8

Drainage

Well Drained

How Much Corn to Grow

1-2 ears
Average yield per plant
15
Plants per person
30 sq ft
Space per person

For a family of 4, plant approximately 60 corn plants in about 120 sq ft. In Clayton County's 220-day season, you'll have plenty of time for a full harvest. Plan your garden layout →

Monthly Watering Guide for Corn

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 Corn Needs Rainfall You Supplement Action
Jan 5" 0" ❄️ Dormant
Feb 4.5" 0" ❄️ Dormant
Mar 4.3" 5.1" 0" ✅ Rainfall sufficient
Apr 4.3" 4.1" 0.2" 💧 Light watering
May 4.3" 5.1" 0" ✅ Rainfall sufficient
Jun 4.3" 4.4" 0" ✅ Rainfall sufficient
Jul 4.3" 6.3" 0" ✅ Rainfall sufficient
Aug 4.3" 5.6" 0" ✅ Rainfall sufficient
Sep 4.3" 4.1" 0.2" 💧 Light watering
Oct 4.3" 4.1" 0.2" 💧 Light watering
Nov 4.3" 3.7" 0.6" 💧 Light watering
Dec 4.1" 0" ❄️ Dormant

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

Corn Planting Timeline — Clayton County, GA

Corn Planting Calendar

Activity When Date Range
Direct Sow April 4 Apr 4 – Apr 25
Harvest June 6 Jun 6 – Aug 1

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

Month-by-Month Timeline

MonthActivities
January
February
March
April Direct Sow
May
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

60–100 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 8b

📆 Growing Season

220 days in Clayton County

Growing Tips for Clayton 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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Corn in Clayton County, GA?

Clayton County is in Zone 8b with an average last frost of March 28. Plan your Corn planting based on this frost date — see the calendar above for exact timing.

What planting zone is Clayton County, GA?

Clayton County, Georgia is in USDA Hardiness Zone 8b. The average last spring frost is March 28 and first fall frost is November 3.

When should I plant Corn in Clayton County, GA?

In Clayton County, GA, plant Corn after the last frost (around March 28) and before the first frost (around November 3). Best results when soil holds above 50°F.

What growing zone is Clayton County, GA for Corn?

Clayton County sits in USDA Zone 8b. Corn grows reliably in zones 3a through 11b, so it's a good fit here.

Can Corn grow in Clayton County's climate?

Yes — Corn grows well in Clayton County's temperate climate. Clayton County averages a 220-day frost-free season, with last frost around March 28 and first frost around November 3.

🌱

Your Clayton County Garden Planner — Free

A 22-page printable planner built for Clayton County (Zone 8b). 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 Clayton County, GA. Local conditions may vary. Last updated: July 2026.

Sources & credits

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