When to plant Feverfew in Gilpin County, CO
Gilpin County's short 135-day growing season means one Feverfew planting between May 21 and June 4. No fall crop in Zone 5b.
When to Plant Feverfew in Gilpin County, CO
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.
Gilpin County, Colorado is in USDA Zone 5b. The average last spring frost is May 14 and the first fall frost is September 26, giving you a growing season of approximately 135 days.
At an elevation of 6,444 feet, Gilpin County receives approximately 18.6 inches of rainfall annually with predominantly loam soil. Summer highs average 81°F, so choose short-season varieties of Feverfew to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Feverfew successfully. Mulch heavily to conserve soil moisture.
Gilpin County Soil Profile
Soil Type
Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Feverfew Planting Timeline — Gilpin County, CO
Feverfew Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | May 21 | May 21 – Jun 4 |
| Harvest | August 20 | Aug 20 – Nov 5 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Transplant Outdoors |
| June | Transplant Outdoors |
| July | — |
| August | Harvest |
| September | Harvest |
| October | Harvest |
| November | Harvest |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Low — drought tolerant
📅 Days to Maturity
90–120 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 5b
📆 Growing Season
135 days in Gilpin County
Growing Tips for Gilpin County
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 Gilpin County, CO?
Gilpin County is in Zone 5b with an average last frost of May 14. Plan your Feverfew planting based on this frost date — see the calendar above for exact timing.
What planting zone is Gilpin County, CO?
Gilpin County, Colorado is in USDA Hardiness Zone 5b. The average last spring frost is May 14 and first fall frost is September 26.
When should I plant Feverfew in Gilpin County, CO?
In Gilpin County, CO, plant Feverfew after the last frost (around May 14) and before the first frost (around September 26). Best results when soil holds above 50°F.
What growing zone is Gilpin County, CO for Feverfew?
Gilpin 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 Gilpin County's climate?
Yes — Feverfew grows well in Gilpin County's temperate climate. Gilpin County averages a 135-day frost-free season, with last frost around May 14 and first frost around September 26.
Your Gilpin County Garden Planner — Free
A 22-page printable planner built for Gilpin 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.