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When to Plant Turnip in Crawford County, WI

Turnips are a fast-growing cool-season root vegetable with edible roots and greens. Baby turnips are sweet and tender while mature ones are more pungent.

Crawford County, Wisconsin is in USDA Zone 4b. The average last spring frost is April 27 and the first fall frost is October 9, giving you a growing season of approximately 165 days.

At an elevation of 1,251 feet, Crawford County receives approximately 34.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 80ยฐF, so choose short-season varieties of Turnip to ensure they mature before fall.

Crawford County, WI (Zone 4b) Moderate season
165 days
Last Spring Frost April 27
165 growing days
First Fall Frost October 9

Crawford County Soil Profile

Soil Type

Silt Loam

Soil pH

5.8-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (87 days to spare)
Transplant: Apr 23 🍅 Harvest: Jun 4 – Jul 9
Recommended (50%) ✓ Fits season (88 days to spare)
Transplant: Apr 27 🍅 Harvest: Jun 8 – Jul 13
Safe Start (90%) ✓ Fits season (84 days to spare)
Transplant: May 13 🍅 Harvest: Jun 24 – Jul 29

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 183 gal / 100 sq ft
Turnip needs ~500 GDD — county provides 1,650 GDD Excellent fit

Turnip Planting Timeline โ€” Crawford County, WI

Turnip Planting Calendar

Activity When Date Range
Direct Sow April 20 Apr 20 โ€“ May 11
Fall Sowing July 17 Jul 17 โ€“ Jul 31
Harvest June 1 Jun 1 โ€“ Jul 6

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

40โ€“60 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 4b

Growing Season

165 days

Growing Tips for Crawford County

Direct sow in early spring or late summer. Harvest when roots are 2-3 inches in diameter for best flavor. Both the roots and the greens are nutritious and edible.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Level Up Your Garden

Frequently Asked Questions

When should I plant Turnip in Crawford County, WI?

Crawford County is in Zone 4b with an average last frost of April 27. Plan your Turnip planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Crawford County, WI?

Crawford County, Wisconsin is in USDA Hardiness Zone 4b. The average last spring frost is April 27 and first fall frost is October 9.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Crawford County gardeners in Zone 4b 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, WI. Local conditions may vary. Last updated: April 2026.