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When to plant Cabbage in Montezuma County, CO

Aim to plant Cabbage in Montezuma County on or after May 13; the window stays open through June 3. Montezuma County's 123-day frost-free season gives you just enough for one full spring planting. A second sowing from July 19 to August 2 extends the harvest into fall.

When to Plant Cabbage in Montezuma County, CO

Cabbage
Montezuma County, Colorado Zone 7a July

July to-do list for Montezuma County, Colorado

Welcome to July in Zone 7a. These are the moves that will have the biggest impact on your growing season.

Avg. last frost May 27
Avg. first frost September 27
Soil temp (4") 52°F
Watering High
Pest pressure High
Daylight 14.3 hrs
  1. Indoor seed-starting week for cabbage

    Give them 6–8 weeks indoors before the last frost and you'll transplant into warm soil with seedlings that are already leaping.

  2. Harvest cabbage as they ripen

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

  3. Direct-sow cabbage for cool weather

    A row cover ready in the garage extends your harvest by weeks once the nights turn cold.

Get ahead of August
  • First harvests: 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.

Montezuma County, Colorado is in USDA Zone 7a. The average last spring frost is May 27 and the first fall frost is September 27, giving you a growing season of approximately 123 days.

At an elevation of 8,063 feet, Montezuma County receives approximately 15.2 inches of rainfall annually with predominantly loam soil. Summer highs average 84°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.

Montezuma County, CO (Zone 7a) Short season
123 days
Last Spring Frost May 27
123 growing days
First Fall Frost September 27

Montezuma County Soil Profile

Soil Type

Loam

Soil pH

6.4-7.7

Drainage

Well Drained

Cabbage Planting Risk Windows

Early Start (70% safe) ✓ Fits season (6 days to spare)
Start indoors: Apr 14 Transplant: May 19 🍅 Harvest: Jul 21 – Sep 15
Recommended (50%) ✓ Fits season (4 days to spare)
Start indoors: Apr 22 Transplant: May 27 🍅 Harvest: Jul 29 – Sep 23
Safe Start (90%) ✓ Fits season (3 days to spare)
Start indoors: May 9 Transplant: Jun 13 🍅 Harvest: Aug 15 – Oct 10

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 Montezuma County

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

Soil pH

Your soil pH (6.4–7.7) overlaps with Cabbage's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.8%). Annual compost additions will help Cabbage.

How to Plant 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 Cabbage

2
successive plantings in your 123-day season

Sow every 6.9 weeks. Last sowing by Jun 19 to harvest before frost.

For a dedicated fall crop, sow by Jul 19.

Cabbage Water Budget

Plant needs
0.9″/week
Rainfall provides
0.5″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 500 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 1.1" 0" ❄️ Dormant
Feb 0.8" 0" ❄️ Dormant
Mar 1.3" 0" ❄️ Dormant
Apr 1.7" 0" ❄️ Dormant
May 3.9" 1.8" 2.1" 🚿 Regular watering
Jun 3.9" 1.1" 2.8" 🚿 Regular watering
Jul 3.9" 1.3" 2.6" 🚿 Regular watering
Aug 3.9" 1.6" 2.3" 🚿 Regular watering
Sep 3.9" 1.3" 2.6" 🚿 Regular watering
Oct 1.5" 0" ❄️ Dormant
Nov 1.1" 0" ❄️ Dormant
Dec 0.9" 0" ❄️ Dormant

Water needs are for active growing months only (May–Sep in Montezuma 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 ~1,040 GDD — county provides 1,599 GDD Excellent fit

Cabbage Planting Timeline — Montezuma County, CO

Cabbage Planting Calendar

Activity When Date Range
Start Indoors April 22 Apr 22 – May 6
Transplant Outdoors May 27 May 27 – Jun 10
Direct Sow May 13 May 13 – Jun 3
Harvest July 29 Jul 29 – Sep 23
Fall Sowing July 19 Jul 19 – Aug 2

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · 1-2 times/week

📅 Days to Maturity

60–100 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

123 days in Montezuma County

Growing Tips for Cabbage in Montezuma County

Direct sow Cabbage outdoors after May 27 in Montezuma County when soil has warmed and frost danger has passed.

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

Montezuma County receives only 15" 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 Montezuma County, CO?

Montezuma County is in Zone 7a with an average last frost of May 27. Plan your Cabbage planting based on this frost date — see the calendar above for exact timing.

What planting zone is Montezuma County, CO?

Montezuma County, Colorado is in USDA Hardiness Zone 7a. The average last spring frost is May 27 and first fall frost is September 27.

When should I plant Cabbage in Montezuma County, CO?

In Montezuma County, CO, plant Cabbage after the last frost (around May 27) and before the first frost (around September 27). Best results when soil holds above 50°F.

What growing zone is Montezuma County, CO for Cabbage?

Montezuma County sits in USDA Zone 7a. Cabbage grows reliably in zones 1a through 10b, so it's a good fit here.

Can Cabbage grow in Montezuma County's climate?

Yes — Cabbage grows well in Montezuma County's temperate climate. Montezuma County averages a 123-day frost-free season, with last frost around May 27 and first frost around September 27.

🌱

Your Montezuma County Garden Planner — Free

A 22-page printable planner built for Montezuma County (Zone 7a). 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 Montezuma County, CO. Local conditions may vary. Last updated: July 2026.

Sources & credits

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