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When to Plant Savoy Cabbage in Norman County, MN

Norman County, Minnesota Zone 4a May

What to do in May

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Norman County, Minnesota.

Avg. last frost May 10
Avg. first frost October 1
Soil temp (4") 48°F
Watering Low
Pest pressure Low
Daylight 14.9 hrs
  1. Harden off and plant savoy cabbage

    Pinch off the lowest leaves on each seedling before you plant — it reduces water loss while the roots catch up.

  2. Put savoy cabbage seeds straight in the ground

    Your soil is 48°F — warm enough for these to germinate without babying.

Looking ahead to June
  • Starting indoors: savoy cabbage

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Savoy cabbage has crinkled, deeply veined leaves that form looser heads than regular cabbage. It has a milder, sweeter flavor and is more cold-tolerant.

Norman County, Minnesota is in USDA Zone 4a. The average last spring frost is May 10 and the first fall frost is October 1, giving you a growing season of approximately 144 days.

At an elevation of 1,086 feet, Norman County receives approximately 38.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 78°F, so choose short-season varieties of Savoy Cabbage to ensure they mature before fall.

Norman County, MN (Zone 4a) Short season
144 days
Last Spring Frost May 10
144 growing days
First Fall Frost October 1

Norman County Soil Profile

Soil Type

Silt Loam

Soil pH

5.9-6.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (22 days to spare)
Start indoors: Mar 21 Transplant: May 2 🍅 Harvest: Jul 11 – Sep 5
Recommended (50%) ✓ Fits season (18 days to spare)
Start indoors: Mar 29 Transplant: May 10 🍅 Harvest: Jul 19 – Sep 13
Safe Start (90%) ✓ Fits season (19 days to spare)
Start indoors: Apr 10 Transplant: May 22 🍅 Harvest: Jul 31 – Sep 25

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.

Soil Compatibility in Norman County

How your county's soil matches Savoy Cabbage's growing requirements.

Soil pH

Your soil pH (5.9–6.9) overlaps with Savoy Cabbage's range (6.0–7.5), though not a perfect match.

Soil Texture

The silt loam soil in Norman County is excellent for Savoy Cabbage — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Savoy Cabbage.

Organic Matter

Organic matter is excellent (4.0%) — Savoy Cabbage will thrive.

How to Plant Savoy Cabbage

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Fall planting: Sow 12 weeks before your first frost date for a fall harvest.

Succession Planting Savoy Cabbage

2
successive plantings in your 144-day season

Sow every 8 weeks. Last sowing by Jun 13 to harvest before frost.

For a dedicated fall crop, sow by Jul 09.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.1″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 238 gal / 100 sq ft

Monthly Watering Guide for Savoy Cabbage

Savoy 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 Savoy Cabbage Needs Rainfall You Supplement Action
Jan 1.5" 0" ❄️ Dormant
Feb 1.7" 0" ❄️ Dormant
Mar 2.9" 0" ❄️ Dormant
Apr 3.3" 0" ❄️ Dormant
May 4.3" 4" 0.3" 💧 Light watering
Jun 4.3" 4.5" 0" ✅ Rainfall sufficient
Jul 4.3" 3.8" 0.5" 💧 Light watering
Aug 4.3" 4.8" 0" ✅ Rainfall sufficient
Sep 4.3" 3.5" 0.8" 💧 Light watering
Oct 4.3" 3.3" 1" 💧 Light watering
Nov 2.5" 0" ❄️ Dormant
Dec 2.3" 0" ❄️ Dormant

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

Savoy Cabbage Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Savoy Cabbage needs ~765 GDD — county provides 1,224 GDD Excellent fit

Savoy Cabbage Planting Timeline — Norman County, MN

Savoy Cabbage Planting Calendar

Activity When Date Range
Start Indoors March 29 Mar 29 – Apr 12
Transplant Outdoors May 10 May 10 – May 24
Direct Sow May 3 May 3 – May 24
Harvest July 19 Jul 19 – Sep 13
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
May Transplant Outdoors Direct Sow
June
July Fall Sowing Harvest
August Harvest
September Harvest
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

70–110 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 4a

📆 Growing Season

144 days in Norman County

Growing Tips for Savoy Cabbage in Norman County

Direct sow Savoy Cabbage outdoors after May 10 in Norman County when soil has warmed and frost danger has passed.

Common pests for Savoy Cabbage in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 4-6 weeks before last frost. Savoy cabbage is more forgiving of temperature fluctuations than smooth-leaved types. Excellent for stuffed cabbage rolls.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries
  • Tomatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Savoy Cabbage in Norman County, MN?

Norman County is in Zone 4a with an average last frost of May 10. Plan your Savoy Cabbage planting based on this frost date — see the calendar above for exact timing.

What planting zone is Norman County, MN?

Norman County, Minnesota is in USDA Hardiness Zone 4a. The average last spring frost is May 10 and first fall frost is October 1.

🌱

Your Norman County Garden Planner — Free

A 24-page printable planner built for Norman 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 Norman County, MN. Local conditions may vary. Last updated: May 2026.

Sources & credits

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