When to Plant Oregano in Moffat County, CO
May to-do list for Moffat County, Colorado
We've pulled the most time-sensitive tasks for Moffat County, Colorado this May and put them front and centre. Tackle them in order.
Looking ahead to June
- Transplants going out: oregano
Oregano is a robust perennial herb essential to Italian and Greek cuisine. Its pungent, savory leaves intensify in flavor when dried.
Moffat County, Colorado is in USDA Zone 5b. The average last spring frost is June 7 and the first fall frost is September 14, giving you a growing season of approximately 99 days.
At an elevation of 6,597 feet, Moffat County receives approximately 12.3 inches of rainfall annually with predominantly loam soil. Summer highs average 86°F, providing good warmth for Oregano during the growing season. With low rainfall, drip irrigation is essential for growing Oregano successfully. Mulch heavily to conserve soil moisture.
Moffat County Soil Profile
Soil Type
Loam
Soil pH
6.8-8.3
Drainage
Well Drained
Plant 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 Moffat County
How your county's soil matches Oregano's growing requirements.
Soil pH
Your soil pH (6.8–8.3) overlaps with Oregano's range (6.0–8.0), though not a perfect match.
Soil Texture
The loam soil in Moffat County is excellent for Oregano — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Oregano.
Organic Matter
Organic matter is moderate (2.4%). Annual compost additions will help Oregano.
How to Plant Oregano
Plant Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Oregano
Oregano needs approximately 0.3 inches of water per week (1.3" per month). Here's how your county's rainfall compares month by month.
| Month | Oregano Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1" | 0" | ❄️ Dormant |
| Feb | — | 0.8" | 0" | ❄️ Dormant |
| Mar | — | 1.1" | 0" | ❄️ Dormant |
| Apr | — | 1.2" | 0" | ❄️ Dormant |
| May | — | 1.4" | 0" | ❄️ Dormant |
| Jun | 1.3" | 0.8" | 0.5" | 💧 Light watering |
| Jul | 1.3" | 1" | 0.3" | 💧 Light watering |
| Aug | 1.3" | 1.4" | 0" | ✅ Rainfall sufficient |
| Sep | 1.3" | 1.1" | 0.2" | 💧 Light watering |
| Oct | — | 1" | 0" | ❄️ Dormant |
| Nov | — | 0.8" | 0" | ❄️ Dormant |
| Dec | — | 0.8" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Jun–Sep in Moffat County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Oregano 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.
Oregano Planting Timeline — Moffat County, CO
Oregano Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | June 14 | Jun 14 – Jun 28 |
| Harvest | August 16 | Aug 16 – Oct 25 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | — |
| June | Transplant Outdoors |
| July | — |
| August | Harvest |
| September | Harvest |
| October | Harvest |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.3"/week · Natural rainfall sufficient
📅 Days to Maturity
60–90 days
🧪 Soil pH
Needs 6–8 · Your soil: acceptable
🗺️ USDA Zone
Zone 5b
📆 Growing Season
99 days in Moffat County
Growing Tips for Oregano in Moffat County
Direct sow Oregano outdoors after June 07 in Moffat County when soil has warmed and frost danger has passed.
Your 99.0-day growing season in Moffat County is tight for Oregano (60.0-90.0 days to maturity). Start indoors and choose early-maturing varieties.
General growing tips
Start from seed, cuttings, or divisions. Harvest just before flowering for strongest flavor. Cut plants back to a few inches in spring to encourage vigorous new growth.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Oregano in Other Locations
Frequently Asked Questions
When should I plant Oregano in Moffat County, CO?
Moffat County is in Zone 5b with an average last frost of June 7. Plan your Oregano planting based on this frost date — see the calendar above for exact timing.
What planting zone is Moffat County, CO?
Moffat County, Colorado is in USDA Hardiness Zone 5b. The average last spring frost is June 7 and first fall frost is September 14.
Your Moffat County Garden Planner — Free
A 24-page printable planner built for Moffat 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.