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When to Plant Radish in Dougherty County, GA

Dougherty County, Georgia Zone 9a 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 Dougherty County, Georgia.

Avg. last frost March 7
Avg. first frost November 18
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.6 hrs

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Radishes are one of the fastest-growing vegetables, with some varieties ready in under a month. They come in round, elongated, and large winter types.

Dougherty County, Georgia is in USDA Zone 9a. The average last spring frost is March 7 and the first fall frost is November 18, giving you a growing season of approximately 256 days.

At an elevation of 269 feet, Dougherty County receives approximately 54.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 96°F, so Radish may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Radish, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Radish root diseases.

Dougherty County, GA (Zone 9a) Long season
256 days
Last Spring Frost March 7
256 growing days
First Fall Frost November 18

Dougherty County Soil Profile

Soil Type

Clay Loam

Soil pH

5.4-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (207 days to spare)
Transplant: Feb 28 🍅 Harvest: Mar 28 – Apr 18
Recommended (50%) ✓ Fits season (207 days to spare)
Transplant: Mar 7 🍅 Harvest: Apr 4 – Apr 25
Safe Start (90%) ✓ Fits season (203 days to spare)
Transplant: Mar 26 🍅 Harvest: Apr 23 – May 14

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 Dougherty County

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

Soil pH

Your soil pH (5.4–6.2) is more acidic than Radish prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Radish.

Organic Matter

Organic matter is moderate (2.4%). Annual compost additions will help Radish.

How to Plant Radish

0.5"
Planting Depth
2"
Between Plants
6"
Between Rows

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Radish

14
successive plantings in your 256-day season

Sow every 2.4 weeks. Last sowing by Oct 14 to harvest before frost.

For a dedicated fall crop, sow by Sep 23.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Radish

Radish needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Radish Needs Rainfall You Supplement Action
Jan 4.3" 0" ❄️ Dormant
Feb 4.2" 0" ❄️ Dormant
Mar 2.2" 5" 0" ✅ Rainfall sufficient
Apr 2.2" 4.5" 0" ✅ Rainfall sufficient
May 2.2" 4.8" 0" ✅ Rainfall sufficient
Jun 2.2" 4.4" 0" ✅ Rainfall sufficient
Jul 2.2" 5.2" 0" ✅ Rainfall sufficient
Aug 2.2" 5.3" 0" ✅ Rainfall sufficient
Sep 2.2" 4.6" 0" ✅ Rainfall sufficient
Oct 2.2" 3.7" 0" ✅ Rainfall sufficient
Nov 2.2" 3.7" 0" ✅ Rainfall sufficient
Dec 4.9" 0" ❄️ Dormant

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

Radish 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.

Radish needs ~627 GDD — county provides 5,632 GDD Excellent fit

Radish Planting Timeline — Dougherty County, GA

Radish Planting Calendar

Activity When Date Range
Direct Sow February 14 Feb 14 – Mar 7
Harvest March 14 Mar 14 – Apr 4
Fall Sowing September 23 Sep 23 – Oct 7

Plant 0.5" deep · 2" apart · Rows 6" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

22–35 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

256 days in Dougherty County

Growing Tips for Radish in Dougherty County

Direct sow Radish outdoors after March 07 in Dougherty County when soil has warmed and frost danger has passed.

With Dougherty County's clay soil (29% clay), work in 3-4 inches of compost before planting Radish. Avoid tilling when soil is wet to prevent compaction.

Summer highs in Dougherty County reach 96°F — grow Radish as a spring or fall crop. Use shade cloth if planting in summer.

Your generous 256.0-day season in Dougherty County allows multiple plantings of Radish. Sow every 11.0 days for continuous harvest.

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

General growing tips

Direct sow every 1-2 weeks for continuous harvest. Do not transplant. Harvest spring radishes promptly to prevent them from becoming pithy and hot.

Companion Planting

Good Companions

Avoid Planting Near

  • Hyssop

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Radish in Dougherty County, GA?

Dougherty County is in Zone 9a with an average last frost of March 7. Plan your Radish planting based on this frost date — see the calendar above for exact timing.

What planting zone is Dougherty County, GA?

Dougherty County, Georgia is in USDA Hardiness Zone 9a. The average last spring frost is March 7 and first fall frost is November 18.

🌱

Your Dougherty County Garden Planner — Free

A 24-page printable planner built for Dougherty 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 Dougherty 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.