When to plant Feverfew in Teton County, ID
Teton County's 103-day season only supports one Feverfew planting per year. Sow between June 7 and June 21 for the best chance at full maturity before September 11.
When to Plant Feverfew in Teton County, ID
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.
Teton County, Idaho is in USDA Zone 5a. The average last spring frost is May 31 and the first fall frost is September 11, giving you a growing season of approximately 103 days.
At an elevation of 6,709 feet, Teton County receives approximately 15.1 inches of rainfall annually with predominantly loam soil. Summer highs average 83°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.
Teton County Soil Profile
Soil Type
Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Feverfew Planting Timeline — Teton County, ID
Feverfew Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | June 7 | Jun 7 – Jun 21 |
| Harvest | September 6 | Sep 6 – Nov 22 |
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
Low — drought tolerant
📅 Days to Maturity
90–120 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 5a
📆 Growing Season
103 days in Teton County
Growing Tips for Teton 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 Teton County, ID?
Teton County is in Zone 5a with an average last frost of May 31. Plan your Feverfew planting based on this frost date — see the calendar above for exact timing.
What planting zone is Teton County, ID?
Teton County, Idaho is in USDA Hardiness Zone 5a. The average last spring frost is May 31 and first fall frost is September 11.
When should I plant Feverfew in Teton County, ID?
In Teton County, ID, plant Feverfew after the last frost (around May 31) and before the first frost (around September 11). Best results when soil holds above 50°F.
What growing zone is Teton County, ID for Feverfew?
Teton County sits in USDA Zone 5a. Feverfew grows reliably in zones 5a through 9b, so it's a good fit here.
Can Feverfew grow in Teton County's climate?
Yes — Feverfew grows well in Teton County's temperate climate. Teton County averages a 103-day frost-free season, with last frost around May 31 and first frost around September 11.
Your Teton County Garden Planner — Free
A 22-page printable planner built for Teton County (Zone 5a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.