When to plant Calendula in Meagher County, MT
Plant Calendula in Meagher County, between May 27 and June 17 — the only viable window. Zone 4b's short season (90 frost-free days) rules out a fall crop.
When to Plant Calendula in Meagher County, MT
Calendula (Calendula officinalis) is a cheerful, edible-flowered cool-season annual valued by herbalists, chefs, and gardeners alike. Its golden-orange petals are used in salves, teas, and as a saffron substitute. Hardy enough to tolerate light frosts, it blooms prolifically in spring and fall, taking a pause during the hottest weeks of summer.
Meagher County, Montana is in USDA Zone 4b. The average last spring frost is June 10 and the first fall frost is September 8, giving you a growing season of approximately 90 days.
At an elevation of 5,072 feet, Meagher County receives approximately 14.2 inches of rainfall annually with predominantly loam soil. Summer highs average 83°F, so choose short-season varieties of Calendula to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Calendula successfully. Mulch heavily to conserve soil moisture.
Meagher County Soil Profile
Soil Type
Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Calendula Planting Timeline — Meagher County, MT
Calendula Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | April 22 | Apr 22 – May 6 |
| Transplant Outdoors | June 10 | Jun 10 – Jun 24 |
| Direct Sow | May 27 | May 27 – Jun 17 |
| Bloom | July 29 | Jul 29 – Oct 14 |
Plant 0.3" deep · 9" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Start Indoors |
| May | Start Indoors Direct Sow |
| June | Transplant Outdoors Direct Sow |
| July | Bloom |
| August | Bloom |
| September | Bloom |
| October | Bloom |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Low — drought tolerant
📅 Days to Maturity
50–70 days
🧪 Soil pH
Needs 5.5–7 · Your soil: N/A
🗺️ USDA Zone
Zone 4b
📆 Growing Season
90 days in Meagher County
Growing Tips for Meagher County
Direct-sow in early spring as soon as soil can be worked — seeds germinate in cool soil (50-65°F). In zones 7+, also sow in fall for winter/spring bloom. Deadhead consistently to extend bloom. Plants self-seed readily; save a few spent heads and allow them to drop. Harvest petals when flowers are fully open for best flavor and medicinal value.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Calendula in Other Locations
Frequently Asked Questions
When should I plant Calendula in Meagher County, MT?
Meagher County is in Zone 4b with an average last frost of June 10. Plan your Calendula planting based on this frost date — see the calendar above for exact timing.
What planting zone is Meagher County, MT?
Meagher County, Montana is in USDA Hardiness Zone 4b. The average last spring frost is June 10 and first fall frost is September 8.
When should I plant Calendula in Meagher County, MT?
In Meagher County, MT, plant Calendula after the last frost (around June 10) and before the first frost (around September 8). Best results when soil holds above 50°F.
What growing zone is Meagher County, MT for Calendula?
Meagher County sits in USDA Zone 4b. Calendula grows reliably in zones 2a through 11b, so it's a good fit here.
Can Calendula grow in Meagher County's climate?
Yes — Calendula grows well in Meagher County's temperate climate. Meagher County averages a 90-day frost-free season, with last frost around June 10 and first frost around September 8.
Your Meagher County Garden Planner — Free
A 22-page printable planner built for Meagher County (Zone 4b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.