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When to plant Fava Beans in Musselshell County, MT

Plant Fava Beans in Musselshell County from May 7 to May 28 in spring. Musselshell County sits in USDA Zone 4b, with last frost around May 14 and first frost on September 23. A second sowing from July 1 to July 15 extends the harvest into fall.

When to Plant Fava Beans in Musselshell County, MT

Fava beans are a cool-season legume with large, meaty beans inside thick pods. They fix nitrogen in the soil and are one of the oldest cultivated crops.

Musselshell County, Montana is in USDA Zone 4b. The average last spring frost is May 14 and the first fall frost is September 23, giving you a growing season of approximately 132 days.

At an elevation of 6,528 feet, Musselshell County receives approximately 15.4 inches of rainfall annually with predominantly loam soil. Summer highs average 82°F, so choose short-season varieties of Fava Beans to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Fava Beans successfully. Mulch heavily to conserve soil moisture.

Musselshell County, MT (Zone 4b) Short season
132 days
Last Spring Frost May 14
132 growing days
First Fall Frost September 23

Musselshell County Soil Profile

Soil Type

Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Fava Beans Planting Timeline — Musselshell County, MT

Fava Beans Planting Calendar

Activity When Date Range
Start Indoors April 2 Apr 2 – Apr 16
Transplant Outdoors May 14 May 14 – May 28
Direct Sow May 7 May 7 – May 28
Harvest July 30 Jul 30 – Sep 10
Fall Sowing July 1 Jul 1 – Jul 15

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April Start Indoors
May Transplant Outdoors Direct Sow
June
July Fall Sowing Harvest
August Harvest
September Harvest
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

75–100 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 4b

📆 Growing Season

132 days in Musselshell County

Growing Tips for Musselshell County

Direct sow as early as soil can be worked in spring. Pinch growing tips when pods begin to form to redirect energy and reduce aphid problems. Stake tall varieties.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Fava Beans in Musselshell County, MT?

Musselshell County is in Zone 4b with an average last frost of May 14. Plan your Fava Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Musselshell County, MT?

Musselshell County, Montana is in USDA Hardiness Zone 4b. The average last spring frost is May 14 and first fall frost is September 23.

When should I plant Fava Beans in Musselshell County, MT?

In Musselshell County, MT, plant Fava Beans after the last frost (around May 14) and before the first frost (around September 23). Best results when soil holds above 50°F.

What growing zone is Musselshell County, MT for Fava Beans?

Musselshell County sits in USDA Zone 4b. Fava Beans grows reliably in zones 2a through 10b, so it's a good fit here.

Can Fava Beans grow in Musselshell County's climate?

Yes — Fava Beans grows well in Musselshell County's temperate climate. Musselshell County averages a 132-day frost-free season, with last frost around May 14 and first frost around September 23.

🌱

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A 22-page printable planner built for Musselshell 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.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Musselshell County, MT. Local conditions may vary. Last updated: June 2026.

Sources & credits

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