When to plant Sage in Flathead County, MT
In Flathead County, Sage is a single-season spring crop — there's no second fall window. Plant June 10–June 24 for an 75–90-day harvest, finishing well before the September 10 first frost.
When to Plant Sage in Flathead County, MT
Sage is a woody perennial herb with velvety gray-green leaves and a warm, peppery flavor. It is a traditional seasoning for poultry, stuffing, and sausage.
Flathead County, Montana is in USDA Zone 5a. The average last spring frost is June 3 and the first fall frost is September 10, giving you a growing season of approximately 99 days.
At an elevation of 6,233 feet, Flathead County receives approximately 20.7 inches of rainfall annually with predominantly loam soil. Summer highs average 87°F, providing good warmth for Sage during the growing season.
Flathead County Soil Profile
Soil Type
Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Sage Planting Timeline — Flathead County, MT
Sage Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | June 10 | Jun 10 – Jun 24 |
| Harvest | August 26 | Aug 26 – Oct 21 |
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
Low — drought tolerant
📅 Days to Maturity
75–90 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 5a
📆 Growing Season
99 days in Flathead County
Growing Tips for Flathead County
Start from seed or cuttings. Prune after flowering to maintain shape. Replace plants every 4-5 years when they become woody and less productive. Excellent drainage is essential.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Sage in Other Locations
Frequently Asked Questions
When should I plant Sage in Flathead County, MT?
Flathead County is in Zone 5a with an average last frost of June 3. Plan your Sage planting based on this frost date — see the calendar above for exact timing.
What planting zone is Flathead County, MT?
Flathead County, Montana is in USDA Hardiness Zone 5a. The average last spring frost is June 3 and first fall frost is September 10.
When should I plant Sage in Flathead County, MT?
In Flathead County, MT, plant Sage after the last frost (around June 3) and before the first frost (around September 10). Best results when soil holds above 50°F.
What growing zone is Flathead County, MT for Sage?
Flathead County sits in USDA Zone 5a. Sage grows reliably in zones 4a through 10b, so it's a good fit here.
Can Sage grow in Flathead County's climate?
Yes — Sage grows well in Flathead County's temperate climate. Flathead County averages a 99-day frost-free season, with last frost around June 3 and first frost around September 10.
Your Flathead County Garden Planner — Free
A 22-page printable planner built for Flathead 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.