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When to Plant Corn in Dade County, GA

Dade County, Georgia Zone 7b May

May in the garden — Dade County, Georgia

Welcome to May in Zone 7b. These are the moves that will have the biggest impact on your growing season.

Avg. last frost April 1
Avg. first frost October 31
Soil temp (4") 67°F
Watering Low
Pest pressure Moderate
Daylight 13.8 hrs
Before June arrives, get these ready
  • First harvests: corn

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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.

Dade County, Georgia is in USDA Zone 7b. The average last spring frost is April 1 and the first fall frost is October 31, giving you a growing season of approximately 213 days.

At an elevation of 77 feet, Dade County receives approximately 60.9 inches of rainfall annually with predominantly clay loam soil. Summer highs average 89°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.

Dade County, GA (Zone 7b) Long season
213 days
Last Spring Frost April 1
213 growing days
First Fall Frost October 31
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Dade 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 (93 days to spare)
Transplant: Mar 26 🍅 Harvest: May 28 – Jul 23
Recommended (50%) ✓ Fits season (94 days to spare)
Transplant: Apr 1 🍅 Harvest: Jun 3 – Jul 29
Safe Start (90%) ✓ Fits season (91 days to spare)
Transplant: Apr 18 🍅 Harvest: Jun 20 – Aug 15

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 Dade County

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

Soil pH

Your soil pH (5.7–6.7) overlaps with Corn's range (6.0–7.0), though not a perfect match.

Soil Texture

The clay loam soil in Dade County is excellent for Corn — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Corn.

How to Plant Corn

1"
Planting Depth
12"
Between Plants
36"
Between Rows

Succession Planting Corn

4
successive plantings in your 213-day season

Sow every 6.9 weeks. Last sowing by Jul 23 to harvest before frost.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
1.2″/week
You supply
0.3″/week
Watering frequency Only during dry spells
Season total 567 gal / 100 sq ft

Monthly Watering Guide for Corn

Corn needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Corn Needs Rainfall You Supplement Action
Jan 5.5" 0" ❄️ Dormant
Feb 5.2" 0" ❄️ Dormant
Mar 6.5" 0" ❄️ Dormant
Apr 6.5" 4.7" 1.8" 💧 Light watering
May 6.5" 4.5" 2" 💧 Light watering
Jun 6.5" 5.4" 1.1" 💧 Light watering
Jul 6.5" 5.7" 0.8" 💧 Light watering
Aug 6.5" 5.4" 1.1" 💧 Light watering
Sep 6.5" 4.2" 2.3" 💧 Light watering
Oct 6.5" 3.8" 2.7" 💧 Light watering
Nov 4.6" 0" ❄️ Dormant
Dec 5.4" 0" ❄️ Dormant

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

Corn 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.

Corn needs ~1,340 GDD — county provides 3,567 GDD Excellent fit

Corn Planting Timeline — Dade County, GA

Corn Planting Calendar

Activity When Date Range
Direct Sow April 8 Apr 8 – Apr 29
Harvest June 10 Jun 10 – Aug 5

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
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.5"/week · Only during dry spells

📅 Days to Maturity

60–100 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 7b

📆 Growing Season

213 days in Dade County

Growing Tips for Corn in Dade County

Direct sow Corn outdoors after April 01 in Dade County when soil has warmed and frost danger has passed.

With Dade County's clay soil (32% clay), work in 3-4 inches of compost before planting Corn. Avoid tilling when soil is wet to prevent compaction.

Common pests for Corn in this region include corn earworm and corn borers. Use row covers early in the season and inspect plants weekly.

General growing tips

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 Dade County, GA?

Dade County is in Zone 7b with an average last frost of April 1. Plan your Corn planting based on this frost date — see the calendar above for exact timing.

What planting zone is Dade County, GA?

Dade County, Georgia is in USDA Hardiness Zone 7b. The average last spring frost is April 1 and first fall frost is October 31.

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Your Dade County Garden Planner — Free

A 24-page printable planner built for Dade County (Zone 7b). 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 Dade 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.