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When to Plant Kohlrabi in Logan County, AR

Kohlrabi is an unusual brassica that forms a swollen stem above ground with a mild, sweet turnip-like flavor. Both the bulb and tender leaves are edible.

Logan County, Arkansas is in USDA Zone 7a. The average last spring frost is April 1 and the first fall frost is October 31, giving you a growing season of approximately 213 days.

At an elevation of 695 feet, Logan County receives approximately 46 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89ยฐF, providing good warmth for Kohlrabi during the growing season.

Logan County, AR (Zone 7a) Long season
213 days
Last Spring Frost April 1
213 growing days
First Fall Frost October 31

Logan County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (131 days to spare)
Start indoors: Feb 18 Transplant: Mar 25 🍅 Harvest: May 13 – Jun 17
Recommended (50%) ✓ Fits season (129 days to spare)
Start indoors: Feb 25 Transplant: Apr 1 🍅 Harvest: May 20 – Jun 24
Safe Start (90%) ✓ Fits season (138 days to spare)
Start indoors: Mar 11 Transplant: Apr 15 🍅 Harvest: Jun 3 – Jul 8

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.

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
Kohlrabi needs ~921 GDD — county provides 3,567 GDD Excellent fit

Kohlrabi Planting Timeline โ€” Logan County, AR

Kohlrabi Planting Calendar

Activity When Date Range
Start Indoors February 25 Feb 25 โ€“ Mar 11
Transplant Outdoors April 1 Apr 1 โ€“ Apr 15
Direct Sow March 18 Mar 18 โ€“ Apr 8
Fall Sowing August 22 Aug 22 โ€“ Sep 5
Harvest May 20 May 20 โ€“ Jun 24

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

45โ€“65 days

Soil pH

6 โ€“ 7.5

USDA Zone

Zone 7a

Growing Season

213 days

Growing Tips for Logan County

Direct sow in spring or fall. Harvest when bulbs are 2-3 inches in diameter for best texture and flavor. Larger bulbs may become woody and fibrous.

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Strawberries

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Frequently Asked Questions

When should I plant Kohlrabi in Logan County, AR?

Logan County is in Zone 7a with an average last frost of April 1. Plan your Kohlrabi planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Logan County, AR?

Logan County, Arkansas is in USDA Hardiness Zone 7a. The average last spring frost is April 1 and first fall frost is October 31.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Logan County gardeners in Zone 7a organize planting dates, track what's growing, and never miss a planting window.

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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 Logan County, AR. Local conditions may vary. Last updated: April 2026.