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When to Plant Daikon in Clinton County, OH

Daikon is a large, mild Japanese radish that can grow over a foot long. It is excellent for pickling, stir-fries, and as a soil-breaking cover crop.

Clinton County, Ohio is in USDA Zone 6a. The average last spring frost is April 16 and the first fall frost is October 22, giving you a growing season of approximately 189 days.

At an elevation of 902 feet, Clinton County receives approximately 32.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85ยฐF, providing good warmth for Daikon during the growing season.

Clinton County, OH (Zone 6a) Moderate season
189 days
Last Spring Frost April 16
189 growing days
First Fall Frost October 22

Clinton County Soil Profile

Soil Type

Silt Loam

Soil pH

6-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (106 days to spare)
Transplant: Apr 10 🍅 Harvest: Jun 5 – Jul 3
Recommended (50%) ✓ Fits season (105 days to spare)
Transplant: Apr 16 🍅 Harvest: Jun 11 – Jul 9
Safe Start (90%) ✓ Fits season (98 days to spare)
Transplant: May 7 🍅 Harvest: Jul 2 – Jul 30

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 Only during dry spells
Season total 460 gal / 100 sq ft
Daikon needs ~825 GDD — county provides 2,598 GDD Excellent fit

Daikon Planting Timeline โ€” Clinton County, OH

Daikon Planting Calendar

Activity When Date Range
Direct Sow April 2 Apr 2 โ€“ Apr 23
Fall Sowing August 13 Aug 13 โ€“ Aug 27
Harvest May 28 May 28 โ€“ Jun 25

Plant 0.5" deep ยท 6" apart ยท Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

50โ€“70 days

Soil pH

5.8 โ€“ 7

USDA Zone

Zone 6a

Growing Season

189 days

Growing Tips for Clinton County

Direct sow in late summer for fall harvest. Loosen soil deeply before planting. Thin seedlings to 6 inches apart. Harvest before hard freeze as exposed shoulders may crack.

Companion Planting

Good Companions

Avoid Planting Near

  • Hyssop

Level Up Your Garden

Frequently Asked Questions

When should I plant Daikon in Clinton County, OH?

Clinton County is in Zone 6a with an average last frost of April 16. Plan your Daikon planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Clinton County, OH?

Clinton County, Ohio is in USDA Hardiness Zone 6a. The average last spring frost is April 16 and first fall frost is October 22.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Clinton County gardeners in Zone 6a 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 Clinton County, OH. Local conditions may vary. Last updated: April 2026.