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When to plant Turnip in Marion County, KY

In Marion County, plant Turnip in spring between March 30 and April 20, once soil temps hold above 50°F. Marion County's last frost averages April 13, so most warm-season crops establish quickly once soil holds above 60°F. For a fall crop, sow between August 17 and August 31 — roughly 40–60 days before the first frost on October 26.

When to Plant Turnip in Marion County, KY

Marion County, Kentucky Zone 7a June

Marion County, Kentucky gardeners: here's your June plan

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Avg. last frost April 13
Avg. first frost October 26
Soil temp (4") 71°F
Watering Low
Pest pressure High
Daylight 14.6 hrs
  1. Start harvesting turnip

    Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.

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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.

Marion County, Kentucky is in USDA Zone 7a. The average last spring frost is April 13 and the first fall frost is October 26, giving you a growing season of approximately 196 days.

At an elevation of 2,021 feet, Marion County receives approximately 41.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91°F, providing good warmth for Turnip during the growing season.

Marion County, KY (Zone 7a) Moderate season
196 days
Last Spring Frost April 13
196 growing days
First Fall Frost October 26

Marion County Soil Profile

Soil Type

Silt Loam

Soil pH

5.8-7.1

Drainage

Well Drained

Turnip Planting Risk Windows

Early Start (70% safe) ✓ Fits season (118 days to spare)
Transplant: Apr 7 🍅 Harvest: May 19 – Jun 23
Recommended (50%) ✓ Fits season (119 days to spare)
Transplant: Apr 13 🍅 Harvest: May 25 – Jun 29
Safe Start (90%) ✓ Fits season (111 days to spare)
Transplant: Apr 28 🍅 Harvest: Jun 9 – Jul 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 Marion County

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

Soil pH

Your soil pH (5.8–7.1) overlaps with Turnip's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Turnip.

Organic Matter

Organic matter is moderate (3.1%). 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

5
successive plantings in your 196-day season

Sow every 4.6 weeks. Last sowing by Aug 27 to harvest before frost.

For a dedicated fall crop, sow by Aug 17.

Turnip Water Budget

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

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 3.9" 0" ❄️ Dormant
Feb 2.9" 0" ❄️ Dormant
Mar 4.2" 0" ❄️ Dormant
Apr 4.3" 3.3" 1" 💧 Light watering
May 4.3" 3.1" 1.2" 💧 Light watering
Jun 4.3" 3.8" 0.5" 💧 Light watering
Jul 4.3" 4.3" 0" ✅ Rainfall sufficient
Aug 4.3" 4.1" 0.2" 💧 Light watering
Sep 4.3" 3" 1.3" 💧 Light watering
Oct 4.3" 2.5" 1.8" 💧 Light watering
Nov 2.9" 0" ❄️ Dormant
Dec 3.6" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Marion 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 ~912 GDD — county provides 3,577 GDD Excellent fit

Turnip Planting Timeline — Marion County, KY

Turnip Planting Calendar

Activity When Date Range
Direct Sow March 30 Mar 30 – Apr 20
Harvest May 11 May 11 – Jun 15
Fall Sowing August 17 Aug 17 – Aug 31

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

Month-by-Month Timeline

MonthActivities
January
February
March Direct Sow
April Direct Sow
May Harvest
June Harvest
July
August Fall Sowing
September
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 7a

📆 Growing Season

196 days in Marion County

Growing Tips for Turnip in Marion County

Direct sow Turnip outdoors after April 13 in Marion County when soil has warmed and frost danger has passed.

Your generous 196.0-day season in Marion 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 Marion County, KY?

Marion County is in Zone 7a with an average last frost of April 13. Plan your Turnip planting based on this frost date — see the calendar above for exact timing.

What planting zone is Marion County, KY?

Marion County, Kentucky is in USDA Hardiness Zone 7a. The average last spring frost is April 13 and first fall frost is October 26.

When should I plant Turnip in Marion County, KY?

In Marion County, KY, plant Turnip after the last frost (around April 13) and before the first frost (around October 26). Best results when soil holds above 50°F.

What growing zone is Marion County, KY for Turnip?

Marion County sits in USDA Zone 7a. Turnip grows reliably in zones 2a through 10b, so it's a good fit here.

Can Turnip grow in Marion County's climate?

Yes — Turnip grows well in Marion County's temperate climate. Marion County averages a 196-day frost-free season, with last frost around April 13 and first frost around October 26.

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Your Marion County Garden Planner — Free

A 22-page printable planner built for Marion County (Zone 7a). 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 Marion County, KY. Local conditions may vary. Last updated: June 2026.

Sources & credits

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