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When to Plant Horseradish in Crawford County, OH

Horseradish is a vigorous perennial grown for its pungent, spicy roots used as a condiment. Once established, it can be difficult to eradicate, so choose its location carefully.

Crawford County, Ohio is in USDA Zone 5b. The average last spring frost is April 26 and the first fall frost is October 22, giving you a growing season of approximately 179 days.

At an elevation of 819 feet, Crawford County receives approximately 30.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83ยฐF, so choose short-season varieties of Horseradish to ensure they mature before fall.

Crawford County, OH (Zone 5b) Moderate season
179 days
Last Spring Frost April 26
179 growing days
First Fall Frost October 22

Crawford County Soil Profile

Soil Type

Silt Loam

Soil pH

5.8-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: May 3 🍅 Harvest: Sep 6 – Oct 18
Recommended (50%) ✗ May not fit
Transplant: May 10 🍅 Harvest: Sep 13 – Oct 25
Safe Start (90%) ✗ May not fit
Transplant: May 21 🍅 Harvest: Sep 24 – Nov 5

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
0.7″/week
You supply
0.3″/week
Watering frequency 1-2 times/week
Season total 548 gal / 100 sq ft
Drought risk

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

Horseradish needs ~1,838 GDD — county provides 2,192 GDD Good fit

Horseradish Planting Timeline โ€” Crawford County, OH

Horseradish Planting Calendar

Activity When Date Range
Transplant Outdoors May 10 May 10 โ€“ May 24
Harvest September 13 Sep 13 โ€“ Oct 25

Plant 1" deep ยท 30" apart ยท Rows 42" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April โ€”
May Transplant Outdoors
June โ€”
July โ€”
August โ€”
September Harvest
October Harvest
November โ€”
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

120โ€“180 days

Soil pH

6 โ€“ 7.5

USDA Zone

Zone 5b

Growing Season

179 days

Growing Tips for Crawford County

Plant root cuttings at a 45-degree angle in early spring. Harvest roots in late fall for strongest flavor. Contain the plant with barriers or grow in large containers.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant Horseradish in Crawford County, OH?

Crawford County is in Zone 5b with an average last frost of April 26. Plan your Horseradish planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Crawford County, OH?

Crawford County, Ohio is in USDA Hardiness Zone 5b. The average last spring frost is April 26 and first fall frost is October 22.

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Plan Your Garden with Confidence

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