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When to plant Fennel in Chippewa County, MN

For Chippewa County, gardeners: plant Fennel May 16 through June 6 once soil reads 50°F.

When to Plant Fennel in Chippewa County, MN

Florence fennel is grown for its swollen bulb-like stem base, which has a mild anise flavor. It is crisp raw in salads and sweet when roasted or braised.

Chippewa County, Minnesota is in USDA Zone 4b. The average last spring frost is May 2 and the first fall frost is October 4, giving you a growing season of approximately 155 days.

At an elevation of 626 feet, Chippewa County receives approximately 34.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 81°F, so choose short-season varieties of Fennel to ensure they mature before fall.

Chippewa County, MN (Zone 4b) Moderate season
155 days
Last Spring Frost May 2
155 growing days
First Fall Frost October 4

Chippewa County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Fennel Planting Timeline — Chippewa County, MN

Fennel Planting Calendar

Activity When Date Range
Start Indoors February 28 Feb 28 – Mar 14
Transplant Outdoors May 23 May 23 – Jun 6
Direct Sow May 16 May 16 – Jun 6
Harvest July 25 Jul 25 – Sep 5

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors
April
May Transplant Outdoors Direct Sow
June Transplant Outdoors Direct Sow
July Harvest
August Harvest
September Harvest
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 5.5–7 · Your soil: N/A

🗺️ USDA Zone

Zone 4b

📆 Growing Season

155 days in Chippewa County

Growing Tips for Chippewa County

Direct sow in late summer for fall harvest to reduce bolting. Hill soil around bulbs as they enlarge. Harvest when bulbs are tennis-ball sized before they elongate.

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Peppers
  • Beans

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Fennel in Chippewa County, MN?

Chippewa County is in Zone 4b with an average last frost of May 2. Plan your Fennel planting based on this frost date — see the calendar above for exact timing.

What planting zone is Chippewa County, MN?

Chippewa County, Minnesota is in USDA Hardiness Zone 4b. The average last spring frost is May 2 and first fall frost is October 4.

When should I plant Fennel in Chippewa County, MN?

In Chippewa County, MN, plant Fennel after the last frost (around May 2) and before the first frost (around October 4). Best results when soil holds above 50°F.

What growing zone is Chippewa County, MN for Fennel?

Chippewa County sits in USDA Zone 4b. Fennel grows reliably in zones 4a through 10b, so it's a good fit here.

Can Fennel grow in Chippewa County's climate?

Yes — Fennel grows well in Chippewa County's temperate climate. Chippewa County averages a 155-day frost-free season, with last frost around May 2 and first frost around October 4.

🌱

Your Chippewa County Garden Planner — Free

A 22-page printable planner built for Chippewa County (Zone 4b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Chippewa County, MN. Local conditions may vary. Last updated: July 2026.

Sources & credits

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