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When to Plant Turnip in Macon County, AL

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.

Macon County, Alabama is in USDA Zone 8a. The average last spring frost is March 25 and the first fall frost is November 6, giving you a growing season of approximately 226 days.

At an elevation of 450 feet, Macon County receives approximately 60 inches of rainfall annually with predominantly clay loam soil. Summer highs average 96ยฐF, so Turnip may need afternoon shade and extra watering during peak heat. 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.

Macon County, AL (Zone 8a) Long season
226 days
Last Spring Frost March 25
226 growing days
First Fall Frost November 6

Macon County Soil Profile

Soil Type

Clay Loam

Soil pH

5.2-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (158 days to spare)
Transplant: Mar 8 🍅 Harvest: Apr 19 – May 24
Recommended (50%) ✓ Fits season (149 days to spare)
Transplant: Mar 25 🍅 Harvest: May 6 – Jun 10
Safe Start (90%) ✓ Fits season (148 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 Macon County

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

Soil pH

Your soil pH (5.2โ€“6.3) is more acidic than Turnip prefers (6.0โ€“7.0). Add garden lime to raise pH.

Soil Texture

The clay loam soil in Macon County is excellent for Turnip โ€” good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Turnip.

Organic Matter

Organic matter is moderate (2.7%). 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 226-day season

Sow every 4.6 weeks. Last sowing by Sep 07 to harvest before frost.

For a dedicated fall crop, sow by Aug 28.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.1″/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 โ€” 4.3" 0" โ„๏ธ Dormant
Feb โ€” 4.9" 0" โ„๏ธ Dormant
Mar 4.3" 5.8" 0" โœ… Rainfall sufficient
Apr 4.3" 5" 0" โœ… Rainfall sufficient
May 4.3" 5.4" 0" โœ… Rainfall sufficient
Jun 4.3" 4.8" 0" โœ… Rainfall sufficient
Jul 4.3" 6.7" 0" โœ… Rainfall sufficient
Aug 4.3" 5.6" 0" โœ… Rainfall sufficient
Sep 4.3" 4.6" 0" โœ… Rainfall sufficient
Oct 4.3" 3.9" 0.4" ๐Ÿ’ง Light watering
Nov 4.3" 4.7" 0" โœ… Rainfall sufficient
Dec โ€” 4.3" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Macon County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 ~1,100 GDD — county provides 4,972 GDD Excellent fit

Turnip Planting Timeline โ€” Macon County, AL

Turnip Planting Calendar

Activity When Date Range
Direct Sow March 11 Mar 11 โ€“ Apr 1
Harvest April 22 Apr 22 โ€“ May 27
Fall Sowing August 28 Aug 28 โ€“ Sep 11

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

40โ€“60 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

226 days in Macon County

Growing Tips for Turnip in Macon County

Direct sow Turnip outdoors after March 25 in Macon County when soil has warmed and frost danger has passed.

With Macon County's clay soil (31% clay), work in 3-4 inches of compost before planting Turnip. Avoid tilling when soil is wet to prevent compaction.

With summer highs reaching 96ยฐF in Macon County, provide afternoon shade for Turnip and water deeply in the morning.

Your generous 226.0-day season in Macon 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 Macon County, AL?

Macon County is in Zone 8a with an average last frost of March 25. Plan your Turnip planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Macon County, AL?

Macon County, Alabama is in USDA Hardiness Zone 8a. The average last spring frost is March 25 and first fall frost is November 6.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Macon County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

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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 Macon County, AL. Local conditions may vary. Last updated: April 2026.