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When to Plant Kohlrabi in Licking County, OH

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.

Licking County, Ohio is in USDA Zone 5b. The average last spring frost is April 24 and the first fall frost is October 19, giving you a growing season of approximately 178 days.

At an elevation of 880 feet, Licking County receives approximately 31.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87ยฐF, providing good warmth for Kohlrabi during the growing season.

Licking County, OH (Zone 5b) Moderate season
178 days
Last Spring Frost April 24
178 growing days
First Fall Frost October 19

Licking County Soil Profile

Soil Type

Silt Loam

Soil pH

6-7.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (98 days to spare)
Start indoors: Mar 12 Transplant: Apr 16 🍅 Harvest: Jun 4 – Jul 9
Recommended (50%) ✓ Fits season (94 days to spare)
Start indoors: Mar 20 Transplant: Apr 24 🍅 Harvest: Jun 12 – Jul 17
Safe Start (90%) ✓ Fits season (89 days to spare)
Start indoors: Apr 7 Transplant: May 12 🍅 Harvest: Jun 30 – Aug 4

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 Licking County

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

Soil pH

Your soil pH (6.0โ€“7.1) is within Kohlrabi's preferred range (6.0โ€“7.5).

Soil Texture

The silt loam soil in Licking County is excellent for Kohlrabi โ€” good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Kohlrabi.

Organic Matter

Organic matter is moderate (3.9%). Annual compost additions will help Kohlrabi.

How to Plant Kohlrabi

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 Kohlrabi

4
successive plantings in your 178-day season

Sow every 5.1 weeks. Last sowing by Aug 15 to harvest before frost.

For a dedicated fall crop, sow by Aug 10.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
0.7″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 330 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Monthly Watering Guide for Kohlrabi

Kohlrabi needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.

Month Kohlrabi Needs Rainfall You Supplement Action
Jan โ€” 1.2" 0" โ„๏ธ Dormant
Feb โ€” 1.5" 0" โ„๏ธ Dormant
Mar โ€” 2" 0" โ„๏ธ Dormant
Apr 3" 2.5" 0.5" ๐Ÿ’ง Light watering
May 3" 3.5" 0" โœ… Rainfall sufficient
Jun 3" 3.8" 0" โœ… Rainfall sufficient
Jul 3" 3.8" 0" โœ… Rainfall sufficient
Aug 3" 3.3" 0" โœ… Rainfall sufficient
Sep 3" 3" 0" โœ… Rainfall sufficient
Oct 3" 2.5" 0.5" ๐Ÿ’ง Light watering
Nov โ€” 2.4" 0" โ„๏ธ Dormant
Dec โ€” 1.6" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Aprโ€“Oct in Licking County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Kohlrabi 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.

Kohlrabi needs ~839 GDD — county provides 2,714 GDD Excellent fit

Kohlrabi Planting Timeline โ€” Licking County, OH

Kohlrabi Planting Calendar

Activity When Date Range
Start Indoors March 20 Mar 20 โ€“ Apr 3
Transplant Outdoors April 24 Apr 24 โ€“ May 8
Direct Sow April 10 Apr 10 โ€“ May 1
Harvest June 12 Jun 12 โ€“ Jul 17
Fall Sowing August 10 Aug 10 โ€“ Aug 24

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.7"/week ยท Only during dry spells

๐Ÿ“… Days to Maturity

45โ€“65 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: ideal

๐Ÿ—บ๏ธ USDA Zone

Zone 5b

๐Ÿ“† Growing Season

178 days in Licking County

Growing Tips for Kohlrabi in Licking County

Direct sow Kohlrabi outdoors after April 24 in Licking County when soil has warmed and frost danger has passed.

Your generous 178.0-day season in Licking County allows multiple plantings of Kohlrabi. Sow every 22.0 days for continuous harvest.

Common pests for Kohlrabi 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 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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Kohlrabi in Licking County, OH?

Licking County is in Zone 5b with an average last frost of April 24. Plan your Kohlrabi planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Licking County, OH?

Licking County, Ohio is in USDA Hardiness Zone 5b. The average last spring frost is April 24 and first fall frost is October 19.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Licking County gardeners in Zone 5b 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 Licking County, OH. Local conditions may vary. Last updated: April 2026.