When to plant Cabbage in Larimer County County,
In Larimer County County, plant Cabbage in spring between April 18 and May 9, once soil temps hold above 50°F. Larimer County County's last frost averages May 2, so time plantings around the expected last-frost window for best survival. For a fall crop, sow between July 28 and August 11 — roughly 100 days before the first frost on October 6.
When to Plant Cabbage in Larimer County, CO
June in Larimer County, Colorado — your action list
A quick June briefing for Larimer County, Colorado gardeners — what's urgent, what's next, and what can wait.
-
Sow cabbage in trays indoors
Your window is short. These crops want several weeks of indoor growth before they go outside.
Before July arrives, get these ready
- First harvests: cabbage
- Fall sowing: cabbage
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.
Larimer County, Colorado is in USDA Zone 5b. The average last spring frost is May 2 and the first fall frost is October 6, giving you a growing season of approximately 157 days.
At an elevation of 7,108 feet, Larimer County receives approximately 23.4 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.
Larimer County Soil Profile
Soil Type
Loam
Soil pH
6.4-8.2
Drainage
Well Drained
Cabbage Planting Risk Windows
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 Larimer County
How your county's soil matches Cabbage's growing requirements.
Soil pH
Your soil pH (6.4–8.2) overlaps with Cabbage's range (6.0–7.5), though not a perfect match.
Soil Texture
The loam soil in Larimer County is excellent for Cabbage — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Cabbage.
Organic Matter
Organic matter is moderate (2.3%). Annual compost additions will help Cabbage.
How to Plant Cabbage
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Cabbage
Sow every 6.9 weeks. Last sowing by Jun 28 to harvest before frost.
For a dedicated fall crop, sow by Jul 28.
Cabbage Water Budget
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 | — | 1.7" | 0" | ❄️ Dormant |
| Feb | — | 1.3" | 0" | ❄️ Dormant |
| Mar | — | 2.1" | 0" | ❄️ Dormant |
| Apr | — | 2.2" | 0" | ❄️ Dormant |
| May | 3.9" | 2.5" | 1.4" | 💧 Light watering |
| Jun | 3.9" | 1.9" | 2" | 🚿 Regular watering |
| Jul | 3.9" | 2.3" | 1.6" | 💧 Light watering |
| Aug | 3.9" | 2.5" | 1.4" | 💧 Light watering |
| Sep | 3.9" | 2" | 1.9" | 💧 Light watering |
| Oct | 3.9" | 1.9" | 2" | 🚿 Regular watering |
| Nov | — | 1.7" | 0" | ❄️ Dormant |
| Dec | — | 1.3" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Oct in Larimer 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 Planting Timeline — Larimer County, CO
Cabbage Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 28 | Mar 28 – Apr 11 |
| Transplant Outdoors | May 2 | May 2 – May 16 |
| Direct Sow | April 18 | Apr 18 – May 9 |
| Harvest | July 4 | Jul 4 – Aug 29 |
| Fall Sowing | July 28 | Jul 28 – Aug 11 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | Fall Sowing Harvest |
| August | Fall Sowing Harvest |
| September | — |
| 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 5b
📆 Growing Season
157 days in Larimer County
Growing Tips for Cabbage in Larimer County
Direct sow Cabbage outdoors after May 02 in Larimer 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.
Larimer County receives only 23" 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
Check more plant combinations with our Companion Planting Checker →
Cabbage in Other Locations
Frequently Asked Questions
When should I plant Cabbage in Larimer County, CO?
Larimer County is in Zone 5b with an average last frost of May 2. Plan your Cabbage planting based on this frost date — see the calendar above for exact timing.
What planting zone is Larimer County, CO?
Larimer County, Colorado is in USDA Hardiness Zone 5b. The average last spring frost is May 2 and first fall frost is October 6.
When should I plant Cabbage in Larimer County, ?
In Larimer County, , plant Cabbage after the last frost (around May 2) and before the first frost (around October 6). Best results when soil holds above 50°F.
What growing zone is Larimer County, for Cabbage?
Larimer County sits in USDA Zone 5b. Cabbage grows reliably in zones 1a through 10b, so it's a good fit here.
Can Cabbage grow in Larimer County's climate?
Yes — Cabbage grows well in Larimer County's temperate climate. Larimer County averages a 157-day frost-free season, with last frost around May 2 and first frost around October 6.
Your Larimer County Garden Planner — Free
A 22-page printable planner built for Larimer County (Zone 5b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.