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When to Plant Daikon in Beltrami County, MN

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.

Beltrami County, Minnesota is in USDA Zone 3b. The average last spring frost is May 16 and the first fall frost is September 28, giving you a growing season of approximately 135 days.

At an elevation of 1,023 feet, Beltrami County receives approximately 39.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 79ยฐF, so choose short-season varieties of Daikon to ensure they mature before fall.

Beltrami County, MN (Zone 3b) Short season
135 days
Last Spring Frost May 16
135 growing days
First Fall Frost September 28

Beltrami County Soil Profile

Soil Type

Silt Loam

Soil pH

5.9-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (48 days to spare)
Transplant: May 10 🍅 Harvest: Jul 5 – Aug 2
Recommended (50%) ✓ Fits season (51 days to spare)
Transplant: May 16 🍅 Harvest: Jul 11 – Aug 8
Safe Start (90%) ✓ Fits season (46 days to spare)
Transplant: Jun 5 🍅 Harvest: Jul 31 – Aug 28

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
1.2″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Daikon needs ~555 GDD — county provides 1,248 GDD Excellent fit

Daikon Planting Timeline โ€” Beltrami County, MN

Daikon Planting Calendar

Activity When Date Range
Direct Sow May 9 May 9 โ€“ May 30
Fall Sowing July 6 Jul 6 โ€“ Jul 20
Harvest July 4 Jul 4 โ€“ Aug 1

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April โ€”
May Direct Sow
June โ€”
July Fall Sowing Harvest
August Harvest
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 3b

Growing Season

135 days

Growing Tips for Beltrami 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 Beltrami County, MN?

Beltrami County is in Zone 3b with an average last frost of May 16. Plan your Daikon planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Beltrami County, MN?

Beltrami County, Minnesota is in USDA Hardiness Zone 3b. The average last spring frost is May 16 and first fall frost is September 28.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Beltrami County gardeners in Zone 3b 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 Beltrami County, MN. Local conditions may vary. Last updated: April 2026.