When to plant Feverfew in Moffat County, CO
Moffat County's short 99-day growing season means one Feverfew planting between June 14 and June 28. No fall crop in Zone 5b.
When to Plant Feverfew in Moffat County, CO
This month in Moffat County, Colorado
July is a pivotal month for Moffat County, Colorado gardens. Focus on these tasks first and you'll set up the rest of the season for success.
Feverfew is a bushy perennial herb with small daisy-like flowers and aromatic leaves. It has been used traditionally for headache relief and is a cheerful garden plant.
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 Feverfew during the growing season. With low rainfall, drip irrigation is essential for growing Feverfew successfully. Mulch heavily to conserve soil moisture.
Moffat County Soil Profile
Soil Type
Loam
Soil pH
6.8-8.3
Drainage
Well Drained
Feverfew 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 Feverfew's growing requirements.
Soil pH
Your soil pH (6.8–8.3) is more alkaline than Feverfew prefers (6.0–7.0). Add sulfur or peat moss to lower pH.
Soil Texture
The loam soil in Moffat County is excellent for Feverfew — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Feverfew.
Organic Matter
Organic matter is moderate (2.4%). Annual compost additions will help Feverfew.
How to Plant Feverfew
Feverfew Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Feverfew
Feverfew needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.
| Month | Feverfew 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 | 2.2" | 0.8" | 1.4" | 🚿 Regular watering |
| Jul | 2.2" | 1" | 1.2" | 🚿 Regular watering |
| Aug | 2.2" | 1.4" | 0.8" | 💧 Light watering |
| Sep | 2.2" | 1.1" | 1.1" | 🚿 Regular 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.
Feverfew 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.
Feverfew Planting Timeline — Moffat County, CO
Feverfew Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | June 14 | Jun 14 – Jun 28 |
| Harvest | September 13 | Sep 13 – Nov 29 |
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 | — |
| September | Harvest |
| October | Harvest |
| November | Harvest |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · Only during dry spells
📅 Days to Maturity
90–120 days
🧪 Soil pH
Needs 6–7 · Your soil: too_alkaline
🗺️ USDA Zone
Zone 5b
📆 Growing Season
99 days in Moffat County
Growing Tips for Feverfew in Moffat County
Direct sow Feverfew 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 Feverfew (90.0-120.0 days to maturity). Start indoors and choose early-maturing varieties.
Common pests for Feverfew in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.
Moffat County receives only 12" of rain annually. Feverfew needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.
General growing tips
Start seeds indoors or direct sow on the soil surface. Deadhead regularly to prevent aggressive self-seeding. Divide clumps every 2-3 years to maintain vigor.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Feverfew in Other Locations
Frequently Asked Questions
When should I plant Feverfew in Moffat County, CO?
Moffat County is in Zone 5b with an average last frost of June 7. Plan your Feverfew 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.
When should I plant Feverfew in Moffat County, CO?
In Moffat County, CO, plant Feverfew after the last frost (around June 7) and before the first frost (around September 14). Best results when soil holds above 50°F.
What growing zone is Moffat County, CO for Feverfew?
Moffat County sits in USDA Zone 5b. Feverfew grows reliably in zones 5a through 9b, so it's a good fit here.
Can Feverfew grow in Moffat County's climate?
Yes — Feverfew grows well in Moffat County's temperate climate. Moffat County averages a 99-day frost-free season, with last frost around June 7 and first frost around September 14.
Your Moffat County Garden Planner — Free
A 22-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.