Blog

When to Plant Savoy Cabbage in Oscoda County, MI

Oscoda County, Michigan Zone 5a May

Oscoda County, Michigan gardeners: here's your May plan

Each item below is timed to Oscoda County, Michigan's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost May 20
Avg. first frost September 30
Soil temp (4") 56°F
Watering Low
Pest pressure Low
Daylight 14.6 hrs
  1. Plant out savoy cabbage

    Your last frost (May 20) has passed. These warm-season crops can handle outdoor soil now.

  2. Seed savoy cabbage outdoors

    Succession planting is the secret here. Put in a row now, another in 2 weeks, a third in 4.

Looking ahead to June
  • Starting indoors: savoy cabbage

Instant PDF download. No spam, unsubscribe any time.

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.

Oscoda County, Michigan is in USDA Zone 5a. The average last spring frost is May 20 and the first fall frost is September 30, giving you a growing season of approximately 133 days.

At an elevation of 765 feet, Oscoda County receives approximately 41 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83°F, so choose short-season varieties of Savoy Cabbage to ensure they mature before fall.

Oscoda County, MI (Zone 5a) Short season
133 days
Last Spring Frost May 20
133 growing days
First Fall Frost September 30

Oscoda County Soil Profile

Soil Type

Silt Loam

Soil pH

6.2-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (5 days to spare)
Start indoors: Apr 11 Transplant: May 16 🍅 Harvest: Jul 25 – Sep 19
Recommended (50%) ✓ Fits season (7 days to spare)
Start indoors: Apr 15 Transplant: May 20 🍅 Harvest: Jul 29 – Sep 23
Safe Start (90%) ✓ Fits season (9 days to spare)
Start indoors: Apr 28 Transplant: Jun 2 🍅 Harvest: Aug 11 – Oct 6

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 Oscoda County

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

Soil pH

Your soil pH (6.2–7.2) is within Savoy Cabbage's preferred range (6.0–7.5).

Soil Texture

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

Organic Matter

Organic matter is excellent (4.7%) — Savoy Cabbage will thrive.

How to Plant Savoy Cabbage

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

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Savoy Cabbage

2
successive plantings in your 133-day season

Sow every 8 weeks. Last sowing by Jun 12 to harvest before frost.

For a dedicated fall crop, sow by Jul 22.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.3″/week
Watering frequency Natural rainfall sufficient
Season total 0 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 1.8" 0" ❄️ Dormant
Feb 1.9" 0" ❄️ Dormant
Mar 2.6" 0" ❄️ Dormant
Apr 4.4" 0" ❄️ Dormant
May 4.3" 5.2" 0" ✅ Rainfall sufficient
Jun 4.3" 4.5" 0" ✅ Rainfall sufficient
Jul 4.3" 4.5" 0" ✅ Rainfall sufficient
Aug 4.3" 4.6" 0" ✅ Rainfall sufficient
Sep 4.3" 3.2" 1.1" 💧 Light watering
Oct 3.3" 0" ❄️ Dormant
Nov 2.7" 0" ❄️ Dormant
Dec 2.3" 0" ❄️ Dormant

Water needs are for active growing months only (May–Sep in Oscoda 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 ~1,102 GDD — county provides 1,629 GDD Excellent fit

Savoy Cabbage Planting Timeline — Oscoda County, MI

Savoy Cabbage Planting Calendar

Activity When Date Range
Start Indoors April 15 Apr 15 – Apr 29
Transplant Outdoors May 20 May 20 – Jun 3
Direct Sow May 6 May 6 – May 27
Harvest July 29 Jul 29 – Sep 23
Fall Sowing July 22 Jul 22 – Aug 5

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

70–110 days

🧪 Soil pH

Needs 6–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 5a

📆 Growing Season

133 days in Oscoda County

Growing Tips for Savoy Cabbage in Oscoda County

Direct sow Savoy Cabbage outdoors after May 20 in Oscoda 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 Oscoda County, MI?

Oscoda County is in Zone 5a with an average last frost of May 20. Plan your Savoy Cabbage planting based on this frost date — see the calendar above for exact timing.

What planting zone is Oscoda County, MI?

Oscoda County, Michigan is in USDA Hardiness Zone 5a. The average last spring frost is May 20 and first fall frost is September 30.

🌱

Your Oscoda County Garden Planner — Free

A 24-page printable planner built for Oscoda County (Zone 5a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

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

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.