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When to Plant Turnip in Adams County, MS

Adams County, Mississippi Zone 8b May

May in the garden — Adams County, Mississippi

May is a pivotal month for Adams County, Mississippi gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost March 10
Avg. first frost November 12
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. It's harvest week for turnip

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

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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.

Adams County, Mississippi is in USDA Zone 8b. The average last spring frost is March 10 and the first fall frost is November 12, giving you a growing season of approximately 247 days.

At an elevation of 458 feet, Adams County receives approximately 54.1 inches of rainfall annually with predominantly clay loam soil. Summer highs average 97°F, 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.

Adams County, MS (Zone 8b) Long season
247 days
Last Spring Frost March 10
247 growing days
First Fall Frost November 12

Adams County Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (164 days to spare)
Transplant: Mar 5 🍅 Harvest: Apr 16 – May 21
Recommended (50%) ✓ Fits season (170 days to spare)
Transplant: Mar 10 🍅 Harvest: Apr 21 – May 26
Safe Start (90%) ✓ Fits season (159 days to spare)
Transplant: Apr 8 🍅 Harvest: May 20 – Jun 24

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 Adams County

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

Soil pH

Your soil pH (5.6–6.2) is more acidic than Turnip prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.3%). 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

7
successive plantings in your 247-day season

Sow every 4.6 weeks. Last sowing by Sep 13 to harvest before frost.

For a dedicated fall crop, sow by Sep 03.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 176 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 4.5" 0" ❄️ Dormant
Feb 4.1" 0" ❄️ Dormant
Mar 4.3" 4.8" 0" ✅ Rainfall sufficient
Apr 4.3" 3.7" 0.6" 💧 Light watering
May 4.3" 4.7" 0" ✅ Rainfall sufficient
Jun 4.3" 5" 0" ✅ Rainfall sufficient
Jul 4.3" 5.7" 0" ✅ Rainfall sufficient
Aug 4.3" 5.5" 0" ✅ Rainfall sufficient
Sep 4.3" 3.8" 0.5" 💧 Light watering
Oct 4.3" 3.8" 0.5" 💧 Light watering
Nov 4.3" 4" 0.3" 💧 Light watering
Dec 4.4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Adams 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 ~1,138 GDD — county provides 5,619 GDD Excellent fit

Turnip Planting Timeline — Adams County, MS

Turnip Planting Calendar

Activity When Date Range
Direct Sow February 24 Feb 24 – Mar 17
Harvest April 7 Apr 7 – May 12
Fall Sowing September 3 Sep 3 – Sep 17

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8b

📆 Growing Season

247 days in Adams County

Growing Tips for Turnip in Adams County

Direct sow Turnip outdoors after March 10 in Adams County when soil has warmed and frost danger has passed.

With Adams County's clay soil (30% clay), work in 3-4 inches of compost before planting Turnip. Avoid tilling when soil is wet to prevent compaction.

With summer highs reaching 97°F in Adams County, provide afternoon shade for Turnip and water deeply in the morning.

Your generous 247.0-day season in Adams 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 Adams County, MS?

Adams County is in Zone 8b with an average last frost of March 10. Plan your Turnip planting based on this frost date — see the calendar above for exact timing.

What planting zone is Adams County, MS?

Adams County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 10 and first fall frost is November 12.

🌱

Your Adams County Garden Planner — Free

A 24-page printable planner built for Adams County (Zone 8b). 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 Adams County, MS. 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.