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When to Plant Turnip in Mississippi County, AR

Mississippi County, Arkansas Zone 8a May

Mississippi County, Arkansas gardeners: here's your May plan

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

Avg. last frost March 27
Avg. first frost November 3
Soil temp (4") 69°F
Watering Low
Pest pressure Moderate
Daylight 13.9 hrs
  1. Pick turnip

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

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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.

Mississippi County, Arkansas is in USDA Zone 8a. The average last spring frost is March 27 and the first fall frost is November 3, giving you a growing season of approximately 221 days.

At an elevation of 1,005 feet, Mississippi County receives approximately 53.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Turnip during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Turnip root diseases.

Mississippi County, AR (Zone 8a) Long season
221 days
Last Spring Frost March 27
221 growing days
First Fall Frost November 3

Mississippi County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (147 days to spare)
Transplant: Mar 19 🍅 Harvest: Apr 30 – Jun 4
Recommended (50%) ✓ Fits season (144 days to spare)
Transplant: Mar 27 🍅 Harvest: May 8 – Jun 12
Safe Start (90%) ✓ Fits season (145 days to spare)
Transplant: Apr 15 🍅 Harvest: May 27 – Jul 1

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 Mississippi County

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

Soil pH

Your soil pH (5.7–6.9) overlaps with Turnip's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.9%). 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 221-day season

Sow every 4.6 weeks. Last sowing by Sep 04 to harvest before frost.

For a dedicated fall crop, sow by Aug 25.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/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 5.1" 0" ❄️ Dormant
Feb 4.8" 0" ❄️ Dormant
Mar 4.3" 4.8" 0" ✅ Rainfall sufficient
Apr 4.3" 3.7" 0.6" 💧 Light watering
May 4.3" 4.8" 0" ✅ Rainfall sufficient
Jun 4.3" 4.9" 0" ✅ Rainfall sufficient
Jul 4.3" 5" 0" ✅ Rainfall sufficient
Aug 4.3" 4.9" 0" ✅ Rainfall sufficient
Sep 4.3" 4.2" 0.1" 💧 Light watering
Oct 4.3" 3.6" 0.7" 💧 Light watering
Nov 4.3" 4" 0.3" 💧 Light watering
Dec 3.9" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Mississippi 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 ~838 GDD — county provides 3,701 GDD Excellent fit

Turnip Planting Timeline — Mississippi County, AR

Turnip Planting Calendar

Activity When Date Range
Direct Sow March 13 Mar 13 – Apr 3
Harvest April 24 Apr 24 – May 29
Fall Sowing August 25 Aug 25 – Sep 8

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
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: acceptable

🗺️ USDA Zone

Zone 8a

📆 Growing Season

221 days in Mississippi County

Growing Tips for Turnip in Mississippi County

Direct sow Turnip outdoors after March 27 in Mississippi County when soil has warmed and frost danger has passed.

Your generous 221.0-day season in Mississippi 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 Mississippi County, AR?

Mississippi County is in Zone 8a with an average last frost of March 27. Plan your Turnip planting based on this frost date — see the calendar above for exact timing.

What planting zone is Mississippi County, AR?

Mississippi County, Arkansas is in USDA Hardiness Zone 8a. The average last spring frost is March 27 and first fall frost is November 3.

🌱

Your Mississippi County Garden Planner — Free

A 24-page printable planner built for Mississippi 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 Mississippi County, AR. 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.