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When to plant Napa Cabbage in Kanabec County, MN

For Napa Cabbage in Kanabec County, the safe spring window opens around April 26 and closes around May 17. Last expected frost is May 3, first fall frost October 1, giving a 151-day growing season. A second sowing from July 9 to July 23 extends the harvest into fall.

When to Plant Napa Cabbage in Kanabec County, MN

Napa cabbage forms tall, barrel-shaped heads with tender, crinkled leaves and a mild, slightly sweet flavor. It is the primary cabbage used for kimchi.

Kanabec County, Minnesota is in USDA Zone 4a. The average last spring frost is May 3 and the first fall frost is October 1, giving you a growing season of approximately 151 days.

At an elevation of 1,316 feet, Kanabec County receives approximately 36.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 82°F, so choose short-season varieties of Napa Cabbage to ensure they mature before fall.

Kanabec County, MN (Zone 4a) Moderate season
151 days
Last Spring Frost May 3
151 growing days
First Fall Frost October 1

Kanabec County Soil Profile

Soil Type

Silt Loam

Soil pH

5.8-7.3

Drainage

Well Drained

Monthly Watering Guide for Napa Cabbage

Napa Cabbage needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Napa Cabbage Needs Rainfall You Supplement Action
Jan 1.3" 0" ❄️ Dormant
Feb 1.8" 0" ❄️ Dormant
Mar 2.8" 0" ❄️ Dormant
Apr 4" 0" ❄️ Dormant
May 4.3" 3.6" 0.7" 💧 Light watering
Jun 4.3" 4.2" 0.1" 💧 Light watering
Jul 4.3" 4.2" 0.1" 💧 Light watering
Aug 4.3" 3.8" 0.5" 💧 Light watering
Sep 4.3" 3.2" 1.1" 💧 Light watering
Oct 4.3" 2.7" 1.6" 💧 Light watering
Nov 2.6" 0" ❄️ Dormant
Dec 2.1" 0" ❄️ Dormant

Water needs are for active growing months only (May–Oct in Kanabec County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Napa Cabbage Planting Timeline — Kanabec County, MN

Napa Cabbage Planting Calendar

Activity When Date Range
Start Indoors March 22 Mar 22 – Apr 5
Transplant Outdoors May 3 May 3 – May 17
Direct Sow April 26 Apr 26 – May 17
Harvest June 28 Jun 28 – Aug 2
Fall Sowing July 9 Jul 9 – Jul 23

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

High — keep soil consistently moist

📅 Days to Maturity

55–75 days

🧪 Soil pH

Needs 6–7.5 · Your soil: N/A

🗺️ USDA Zone

Zone 4a

📆 Growing Season

151 days in Kanabec County

Growing Tips for Kanabec County

Best grown as a fall crop. Direct sow in late summer, 60-70 days before first frost. Keep soil evenly moist. Bolt-resistant varieties are available for spring planting.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Napa Cabbage in Kanabec County, MN?

Kanabec County is in Zone 4a with an average last frost of May 3. Plan your Napa Cabbage planting based on this frost date — see the calendar above for exact timing.

What planting zone is Kanabec County, MN?

Kanabec County, Minnesota is in USDA Hardiness Zone 4a. The average last spring frost is May 3 and first fall frost is October 1.

When should I plant Napa Cabbage in Kanabec County, MN?

In Kanabec County, MN, plant Napa Cabbage after the last frost (around May 3) and before the first frost (around October 1). Best results when soil holds above 50°F.

What growing zone is Kanabec County, MN for Napa Cabbage?

Kanabec County sits in USDA Zone 4a. Napa Cabbage grows reliably in zones 2a through 11b, so it's a good fit here.

Can Napa Cabbage grow in Kanabec County's climate?

Yes — Napa Cabbage grows well in Kanabec County's temperate climate. Kanabec County averages a 151-day frost-free season, with last frost around May 3 and first frost around October 1.

🌱

Your Kanabec County Garden Planner — Free

A 22-page printable planner built for Kanabec County (Zone 4a). 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 Kanabec County, MN. Local conditions may vary. Last updated: June 2026.

Sources & credits

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