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When to Plant Cabbage in DeKalb County, GA

DeKalb County, Georgia Zone 8a May

What to do in May

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in DeKalb County, Georgia.

Avg. last frost March 22
Avg. first frost November 13
Soil temp (4") 67°F
Watering Moderate
Pest pressure Moderate
Daylight 13.8 hrs
  1. Start harvesting cabbage

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

June prep starts now
  • First harvests: cabbage

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Cabbage is a versatile cool-season crop that forms dense, leafy heads in green, red, or savoy varieties. It is a staple for coleslaw, sauerkraut, and many global cuisines.

DeKalb County, Georgia is in USDA Zone 8a. The average last spring frost is March 22 and the first fall frost is November 13, giving you a growing season of approximately 236 days.

At an elevation of 323 feet, DeKalb County receives approximately 50.3 inches of rainfall annually with predominantly clay loam soil. Summer highs average 94°F, providing good warmth for Cabbage during the growing season. Clay soil retains moisture well for Cabbage, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cabbage root diseases.

DeKalb County, GA (Zone 8a) Long season
236 days
Last Spring Frost March 22
236 growing days
First Fall Frost November 13

DeKalb County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (119 days to spare)
Start indoors: Feb 4 Transplant: Mar 11 🍅 Harvest: May 13 – Jul 8
Recommended (50%) ✓ Fits season (117 days to spare)
Start indoors: Feb 15 Transplant: Mar 22 🍅 Harvest: May 24 – Jul 19
Safe Start (90%) ✓ Fits season (115 days to spare)
Start indoors: Mar 6 Transplant: Apr 10 🍅 Harvest: Jun 12 – Aug 7

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 DeKalb County

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

Soil pH

Your soil pH (5.7–6.6) overlaps with Cabbage's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

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

How to Plant Cabbage

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Cabbage

4
successive plantings in your 236-day season

Sow every 6.9 weeks. Last sowing by Aug 05 to harvest before frost.

For a dedicated fall crop, sow by Sep 04.

Plant Water Budget

Plant needs
0.9″/week
Rainfall provides
0.9″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 12 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Cabbage

Cabbage needs approximately 0.9 inches of water per week (3.9" per month). Here's how your county's rainfall compares month by month.

Month Cabbage Needs Rainfall You Supplement Action
Jan 4.8" 0" ❄️ Dormant
Feb 4.4" 0" ❄️ Dormant
Mar 3.9" 5.1" 0" ✅ Rainfall sufficient
Apr 3.9" 3.8" 0.1" 💧 Light watering
May 3.9" 3.6" 0.3" 💧 Light watering
Jun 3.9" 4" 0" ✅ Rainfall sufficient
Jul 3.9" 5.7" 0" ✅ Rainfall sufficient
Aug 3.9" 4.5" 0" ✅ Rainfall sufficient
Sep 3.9" 3.5" 0.4" 💧 Light watering
Oct 3.9" 3.1" 0.8" 💧 Light watering
Nov 3.9" 3.8" 0.1" 💧 Light watering
Dec 3.9" 0" ❄️ Dormant

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

Cabbage 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.

Cabbage needs ~1,640 GDD — county provides 4,838 GDD Excellent fit

Cabbage Planting Timeline — DeKalb County, GA

Cabbage Planting Calendar

Activity When Date Range
Start Indoors February 15 Feb 15 – Mar 1
Transplant Outdoors March 22 Mar 22 – Apr 5
Direct Sow March 8 Mar 8 – Mar 29
Harvest May 24 May 24 – Jul 19
Fall Sowing September 4 Sep 4 – Sep 18

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors Transplant Outdoors Direct Sow
April Transplant Outdoors
May Harvest
June Harvest
July Harvest
August
September Fall Sowing
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · Only during dry spells

📅 Days to Maturity

60–100 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8a

📆 Growing Season

236 days in DeKalb County

Growing Tips for Cabbage in DeKalb County

Direct sow Cabbage outdoors after March 22 in DeKalb County when soil has warmed and frost danger has passed.

With DeKalb County's clay soil (33% clay), work in 3-4 inches of compost before planting Cabbage. Avoid tilling when soil is wet to prevent compaction.

Summer highs in DeKalb County reach 94°F — grow Cabbage as a spring or fall crop. Use shade cloth if planting in summer.

Common pests for Cabbage in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 4-6 weeks before last frost. Space plants 18-24 inches apart. Keep soil evenly moist to prevent heads from splitting.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries
  • Tomatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cabbage in DeKalb County, GA?

DeKalb County is in Zone 8a with an average last frost of March 22. Plan your Cabbage planting based on this frost date — see the calendar above for exact timing.

What planting zone is DeKalb County, GA?

DeKalb County, Georgia is in USDA Hardiness Zone 8a. The average last spring frost is March 22 and first fall frost is November 13.

🌱

Your DeKalb County Garden Planner — Free

A 24-page printable planner built for DeKalb County (Zone 8a). 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 DeKalb 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.