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When to plant Turnip in Douglas County, GA

Douglas County's climate puts the Turnip spring window between March 17 and April 7. most warm-season crops establish quickly once soil holds above 60°F. A second sowing from August 23 to September 6 extends the harvest into fall.

When to Plant Turnip in Douglas County, GA

Douglas County, Georgia Zone 8a July

July in the garden — Douglas County, Georgia

We've pulled the most time-sensitive tasks for Douglas County, Georgia this July and put them front and centre. Tackle them in order.

Avg. last frost March 31
Avg. first frost November 1
Soil temp (4") 86°F
Watering Low
Pest pressure High
Daylight 14 hrs
Coming up in August — start thinking about
  • Fall sowing: turnip

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Turnips are a fast-growing cool-season root vegetable with edible roots and greens. Baby turnips are sweet and tender while mature ones are more pungent.

Douglas County, Georgia is in USDA Zone 8a. The average last spring frost is March 31 and the first fall frost is November 1, giving you a growing season of approximately 215 days.

At an elevation of 171 feet, Douglas County receives approximately 60.8 inches of rainfall annually with predominantly clay loam soil. Summer highs average 94°F, providing good warmth for Turnip during the growing season. Clay soil retains moisture well for Turnip, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Turnip root diseases.

Douglas County, GA (Zone 8a) Long season
215 days
Last Spring Frost March 31
215 growing days
First Fall Frost November 1

Douglas County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.2

Drainage

Well Drained

Turnip Planting Risk Windows

Early Start (70% safe) ✓ Fits season (140 days to spare)
Transplant: Mar 23 🍅 Harvest: May 4 – Jun 8
Recommended (50%) ✓ Fits season (138 days to spare)
Transplant: Mar 31 🍅 Harvest: May 12 – Jun 16
Safe Start (90%) ✓ Fits season (143 days to spare)
Transplant: Apr 17 🍅 Harvest: May 29 – Jul 3

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 Douglas County

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

Soil pH

Your soil pH (5.5–6.2) is more acidic than Turnip prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

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

How to Plant Turnip

0.5"
Planting Depth
4"
Between Plants
12"
Between Rows

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

Succession Planting Turnip

6
successive plantings in your 215-day season

Sow every 4.6 weeks. Last sowing by Sep 02 to harvest before frost.

For a dedicated fall crop, sow by Aug 23.

Turnip Water Budget

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

Monthly Watering Guide for Turnip

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

Month Turnip Needs Rainfall You Supplement Action
Jan 5.2" 0" ❄️ Dormant
Feb 4.4" 0" ❄️ Dormant
Mar 4.3" 5.4" 0" ✅ Rainfall sufficient
Apr 4.3" 5.1" 0" ✅ Rainfall sufficient
May 4.3" 4.5" 0" ✅ Rainfall sufficient
Jun 4.3" 5.7" 0" ✅ Rainfall sufficient
Jul 4.3" 6.6" 0" ✅ Rainfall sufficient
Aug 4.3" 6.2" 0" ✅ Rainfall sufficient
Sep 4.3" 4.6" 0" ✅ Rainfall sufficient
Oct 4.3" 4" 0.3" 💧 Light watering
Nov 4.3" 4.7" 0" ✅ Rainfall sufficient
Dec 4.5" 0" ❄️ Dormant

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

Turnip 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.

Turnip needs ~1,025 GDD — county provides 4,407 GDD Excellent fit

Turnip Planting Timeline — Douglas County, GA

Turnip Planting Calendar

Activity When Date Range
Direct Sow March 17 Mar 17 – Apr 7
Harvest April 28 Apr 28 – Jun 2
Fall Sowing August 23 Aug 23 – Sep 6

Plant 0.5" deep · 4" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8a

📆 Growing Season

215 days in Douglas County

Growing Tips for Turnip in Douglas County

Direct sow Turnip outdoors after March 31 in Douglas County when soil has warmed and frost danger has passed.

With Douglas County's clay soil (26% clay), work in 3-4 inches of compost before planting Turnip. Avoid tilling when soil is wet to prevent compaction.

Your generous 215.0-day season in Douglas County allows multiple plantings of Turnip. Sow every 20.0 days for continuous harvest.

Common pests for Turnip 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 in early spring or late summer. Harvest when roots are 2-3 inches in diameter for best flavor. Both the roots and the greens are nutritious and edible.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Turnip in Douglas County, GA?

Douglas County is in Zone 8a with an average last frost of March 31. Plan your Turnip planting based on this frost date — see the calendar above for exact timing.

What planting zone is Douglas County, GA?

Douglas County, Georgia is in USDA Hardiness Zone 8a. The average last spring frost is March 31 and first fall frost is November 1.

When should I plant Turnip in Douglas County, GA?

In Douglas County, GA, plant Turnip after the last frost (around March 31) and before the first frost (around November 1). Best results when soil holds above 50°F.

What growing zone is Douglas County, GA for Turnip?

Douglas County sits in USDA Zone 8a. Turnip grows reliably in zones 2a through 10b, so it's a good fit here.

Can Turnip grow in Douglas County's climate?

Yes — Turnip grows well in Douglas County's temperate climate. Douglas County averages a 215-day frost-free season, with last frost around March 31 and first frost around November 1.

🌱

Your Douglas County Garden Planner — Free

A 22-page printable planner built for Douglas 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 Douglas County, GA. Local conditions may vary. Last updated: July 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.