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When to Plant Cabbage in Meagher County, MT

Meagher County, Montana Zone 4b May

Top priorities for Meagher County, Montana gardeners in May

A quick May briefing for Meagher County, Montana gardeners — what's urgent, what's next, and what can wait.

Avg. last frost June 10
Avg. first frost September 8
Soil temp (4") 42°F
Watering High
Pest pressure Low
Daylight 14.8 hrs
Before June arrives, get these ready
  • Transplants going out: cabbage
  • Direct-sowing: cabbage
  • Fall sowing: cabbage

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Cabbage is a versatile cool-season crop that forms dense, leafy heads in green, red, or savoy varieties. It is a staple for coleslaw, sauerkraut, and many global cuisines.

Meagher County, Montana is in USDA Zone 4b. The average last spring frost is June 10 and the first fall frost is September 8, giving you a growing season of approximately 90 days.

At an elevation of 5,072 feet, Meagher County receives approximately 14.2 inches of rainfall annually with predominantly loam soil. Summer highs average 83°F, so choose short-season varieties of Cabbage to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Cabbage successfully. Mulch heavily to conserve soil moisture.

Meagher County, MT (Zone 4b) Very short season
90 days
Last Spring Frost June 10
90 growing days
First Fall Frost September 8
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Meagher County Soil Profile

Soil Type

Loam

Soil pH

6.5-8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Apr 16 Transplant: May 28 🍅 Harvest: Jul 30 – Sep 24
Recommended (50%) ✗ May not fit
Start indoors: Apr 29 Transplant: Jun 10 🍅 Harvest: Aug 12 – Oct 7
Safe Start (90%) ✗ May not fit
Start indoors: May 13 Transplant: Jun 24 🍅 Harvest: Aug 26 – Oct 21

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 Meagher County

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

Soil pH

Your soil pH (6.5–8.0) overlaps with Cabbage's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Cabbage.

How to Plant Cabbage

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

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

How Much Cabbage to Grow

2-4 lbs
Average yield per plant
3
Plants per person
7.5 sq ft
Space per person

For a family of 4, plant approximately 12 cabbage plants in about 30 sq ft. In Meagher County's 90-day season, you'll have plenty of time for a full harvest. Plan your garden layout →

Plant Water Budget

Plant needs
0.9″/week
Rainfall provides
0.7″/week
You supply
0.3″/week
Watering frequency Only during dry spells
Season total 228 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Cabbage

Cabbage needs approximately 0.9 inches of water per week (3.9" per month). Here's how your county's rainfall compares month by month.

Month Cabbage Needs Rainfall You Supplement Action
Jan 1" 0" ❄️ Dormant
Feb 0.8" 0" ❄️ Dormant
Mar 1.4" 0" ❄️ Dormant
Apr 1.4" 0" ❄️ Dormant
May 1.9" 0" ❄️ Dormant
Jun 3.9" 0.9" 3" 🚿 Regular watering
Jul 3.9" 1.1" 2.8" 🚿 Regular watering
Aug 3.9" 1.5" 2.4" 🚿 Regular watering
Sep 3.9" 1.1" 2.8" 🚿 Regular watering
Oct 1.3" 0" ❄️ Dormant
Nov 1" 0" ❄️ Dormant
Dec 0.9" 0" ❄️ Dormant

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

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.

Cabbage needs ~980 GDD — county provides 1,102 GDD Good fit

Cabbage Planting Timeline — Meagher County, MT

Cabbage Planting Calendar

Activity When Date Range
Start Indoors April 29 Apr 29 – May 13
Transplant Outdoors June 10 Jun 10 – Jun 24
Direct Sow June 3 Jun 3 – Jun 24
Harvest August 12 Aug 12 – Oct 7
Fall Sowing June 16 Jun 16 – Jun 30

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · Only during dry spells

📅 Days to Maturity

60–100 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 4b

📆 Growing Season

90 days in Meagher County

Growing Tips for Cabbage in Meagher County

Direct sow Cabbage outdoors after June 10 in Meagher County when soil has warmed and frost danger has passed.

Your 90.0-day growing season in Meagher County is tight for Cabbage (60.0-100.0 days to maturity). Start indoors and choose early-maturing varieties.

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

Meagher County receives only 14" of rain annually. Cabbage needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Start seeds indoors 4-6 weeks before last frost. Space plants 18-24 inches apart. Keep soil evenly moist to prevent heads from splitting.

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 Cabbage in Meagher County, MT?

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

What planting zone is Meagher County, MT?

Meagher County, Montana is in USDA Hardiness Zone 4b. The average last spring frost is June 10 and first fall frost is September 8.

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Your Meagher County Garden Planner — Free

A 24-page printable planner built for Meagher 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 Meagher County, MT. 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.