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When to Plant Carrots in Kewaunee County, WI

Carrots are a popular root vegetable available in orange, purple, white, and yellow varieties. They are rich in beta-carotene and have a sweet, earthy flavor.

Kewaunee County, Wisconsin is in USDA Zone 4b. The average last spring frost is May 3 and the first fall frost is October 11, giving you a growing season of approximately 161 days.

At an elevation of 950 feet, Kewaunee County receives approximately 39.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 82ยฐF, so choose short-season varieties of Carrots to ensure they mature before fall.

Kewaunee County, WI (Zone 4b) Moderate season
161 days
Last Spring Frost May 3
161 growing days
First Fall Frost October 11

Kewaunee County Soil Profile

Soil Type

Silt Loam

Soil pH

5.8-7.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (61 days to spare)
Transplant: Apr 27 🍅 Harvest: Jun 29 – Aug 3
Recommended (50%) ✓ Fits season (63 days to spare)
Transplant: May 3 🍅 Harvest: Jul 5 – Aug 9
Safe Start (90%) ✓ Fits season (62 days to spare)
Transplant: May 20 🍅 Harvest: Jul 22 – Aug 26

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
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

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

Carrots needs ~805 GDD — county provides 1,851 GDD Excellent fit

Carrots Planting Timeline โ€” Kewaunee County, WI

Carrots Planting Calendar

Activity When Date Range
Direct Sow April 26 Apr 26 โ€“ May 17
Fall Sowing July 19 Jul 19 โ€“ Aug 2
Harvest June 28 Jun 28 โ€“ Aug 2

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 Direct Sow
June Harvest
July Fall Sowing Harvest
August Fall Sowing 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

60โ€“80 days

Soil pH

6 โ€“ 6.8

USDA Zone

Zone 4b

Growing Season

161 days

Growing Tips for Kewaunee County

Sow seeds directly in loose, stone-free soil for straight roots. Keep soil moist until germination which can take 2-3 weeks. Thin seedlings to 2 inches apart.

Companion Planting

Good Companions

Avoid Planting Near

  • Dill
  • Parsnip

Level Up Your Garden

๐ŸŒพ Save Your Own Carrots Seeds
Life Cycle Biennial
Pollination Cross-Pollinated (insects)
How to Collect Replant roots for 2nd year flowers. Harvest umbels when brown.
Storage Store airtight; viable 3 years at 35ยฐF, under 50% humidity.

Isolate 1/2 mile from Queen Anne's Lace (wild carrot). Biennial โ€” requires two seasons.

Frequently Asked Questions

When should I plant Carrots in Kewaunee County, WI?

Kewaunee County is in Zone 4b with an average last frost of May 3. Plan your Carrots planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Kewaunee County, WI?

Kewaunee County, Wisconsin is in USDA Hardiness Zone 4b. The average last spring frost is May 3 and first fall frost is October 11.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Kewaunee County gardeners in Zone 4b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Kewaunee County, WI. Local conditions may vary. Last updated: April 2026.