Blog

When to plant Cabbage in Ignacio, CO

Plant Cabbage in Ignacio after May 31; the prime window is May 17–June 7. A second sowing from July 13 to July 27 extends the harvest into fall.

When to Plant Cabbage in Ignacio, CO

Cabbage
La Plata County, Colorado Zone 6a June

La Plata County, Colorado gardeners: here's your June plan

A quick June briefing for La Plata County, Colorado gardeners — what's urgent, what's next, and what can wait.

Avg. last frost May 31
Avg. first frost September 21
Soil temp (4") 54°F
Watering Critical
Pest pressure High
Daylight 14.6 hrs
Before July arrives, get these ready
  • Starting indoors: cabbage
  • Fall sowing: cabbage

Instant PDF download. No spam, unsubscribe any time.

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.

Ignacio, Colorado is in USDA Zone 6a. The average last spring frost is May 31 and the first fall frost is September 21, giving you a growing season of approximately 113 days.

At an elevation of 5,246 feet, La Plata County receives approximately 14.9 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.

Ignacio, CO (Zone 6a) Short season
113 days
Last Spring Frost May 31
113 growing days
First Fall Frost September 21

Ignacio Soil Profile

Soil Type

Loam

Soil pH

6.2-7.9

Drainage

Well Drained

Cabbage Planting Risk Windows

Early Start (70% safe) ✓ Fits season (0 days to spare)
Start indoors: Apr 9 Transplant: May 14 🍅 Harvest: Jul 16 – Sep 10
Recommended (50%) ✗ May not fit
Start indoors: Apr 26 Transplant: May 31 🍅 Harvest: Aug 2 – Sep 27
Safe Start (90%) ✗ May not fit
Start indoors: May 22 Transplant: Jun 26 🍅 Harvest: Aug 28 – Oct 23

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 Ignacio

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

Soil pH

Your soil pH (6.2–7.9) overlaps with Cabbage's range (6.0–7.5), though not a perfect match.

Soil Texture

The loam soil in La Plata 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 10 weeks before your first frost date for a fall harvest.

Succession Planting Cabbage

2
successive plantings in your 113-day season

Sow every 6.9 weeks. Last sowing by Jun 13 to harvest before frost.

For a dedicated fall crop, sow by Jul 13.

Cabbage Water Budget

Plant needs
0.9″/week
Rainfall provides
0.6″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 418 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 0.9" 0" ❄️ Dormant
Feb 0.9" 0" ❄️ Dormant
Mar 1.2" 0" ❄️ Dormant
Apr 1.6" 0" ❄️ Dormant
May 3.9" 1.6" 2.3" 🚿 Regular watering
Jun 3.9" 0.9" 3" 🚿 Regular watering
Jul 3.9" 1.4" 2.5" 🚿 Regular watering
Aug 3.9" 1.5" 2.4" 🚿 Regular watering
Sep 3.9" 1.3" 2.6" 🚿 Regular watering
Oct 1.5" 0" ❄️ Dormant
Nov 1" 0" ❄️ Dormant
Dec 1" 0" ❄️ Dormant

Water needs are for active growing months only (May–Sep in La Plata 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 1,384 GDD Excellent fit

Cabbage Planting Timeline — Ignacio, CO

Cabbage Planting Calendar

Activity When Date Range
Start Indoors April 26 Apr 26 – May 10
Transplant Outdoors May 31 May 31 – Jun 14
Direct Sow May 17 May 17 – Jun 7
Harvest August 2 Aug 2 – Sep 27
Fall Sowing July 13 Jul 13 – Jul 27

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
August 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 6a

📆 Growing Season

113 days in La Plata County

Growing Tips for Cabbage in Ignacio

Direct sow Cabbage outdoors after May 31 in La Plata County when soil has warmed and frost danger has passed.

Your 113.0-day growing season in La Plata 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.

La Plata 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 →

When should I plant Cabbage in Ignacio, CO?

In Ignacio, CO, plant Cabbage after the last frost (around May 31) and before the first frost (around September 21). Best results when soil holds above 50°F.

What growing zone is Ignacio, CO for Cabbage?

Ignacio sits in USDA Zone 6a. Cabbage grows reliably in zones 1a through 10b, so it's a good fit here.

Can Cabbage grow in Ignacio's climate?

Yes — Cabbage grows well in Ignacio's temperate climate. Ignacio averages a 113-day frost-free season, with last frost around May 31 and first frost around September 21.

🌱

Your La Plata County Garden Planner — Free

A 22-page printable planner built for La Plata County (Zone 6a). 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 La Plata County, CO. Local conditions may vary. Last updated: June 2026.