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When to plant Black Beans in Calhoun County, MI

In Calhoun County, plant Black Beans in spring between May 7 and May 28, once soil temps hold above 50°F. Calhoun County's last frost averages April 30, so time plantings around the expected last-frost window for best survival. For a fall crop, sow between and — roughly 90–120 days before the first frost on October 13.

When to Plant Black Beans in Calhoun County, MI

Black beans are a warm-season legume producing small, dark, protein-rich beans that are a staple in Latin American and Caribbean cuisines.

Calhoun County, Michigan is in USDA Zone 6a. The average last spring frost is April 30 and the first fall frost is October 13, giving you a growing season of approximately 166 days.

At an elevation of 1,242 feet, Calhoun County receives approximately 39.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83°F, so choose short-season varieties of Black Beans to ensure they mature before fall.

Calhoun County, MI (Zone 6a) Moderate season
166 days
Last Spring Frost April 30
166 growing days
First Fall Frost October 13

Calhoun County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Black Beans Planting Timeline — Calhoun County, MI

Black Beans Planting Calendar

Activity When Date Range
Direct Sow May 7 May 7 – May 28
Harvest August 6 Aug 6 – Sep 24

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

Month-by-Month Timeline

MonthActivities
January
February
March
April
May Direct Sow
June
July
August Harvest
September Harvest
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

90–120 days

🧪 Soil pH

Needs 6–7.5 · Your soil: N/A

🗺️ USDA Zone

Zone 6a

📆 Growing Season

166 days in Calhoun County

Growing Tips for Calhoun County

Direct sow after last frost. Provide support for climbing varieties. Allow pods to dry fully on the vine before harvesting. Thresh dried pods by hand or in a pillowcase.

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 Black Beans in Calhoun County, MI?

Calhoun County is in Zone 6a with an average last frost of April 30. Plan your Black Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Calhoun County, MI?

Calhoun County, Michigan is in USDA Hardiness Zone 6a. The average last spring frost is April 30 and first fall frost is October 13.

When should I plant Black Beans in Calhoun County, MI?

In Calhoun County, MI, plant Black Beans after the last frost (around April 30) and before the first frost (around October 13). Best results when soil holds above 50°F.

What growing zone is Calhoun County, MI for Black Beans?

Calhoun County sits in USDA Zone 6a. Black Beans grows reliably in zones 3a through 11b, so it's a good fit here.

Can Black Beans grow in Calhoun County's climate?

Yes — Black Beans grows well in Calhoun County's temperate climate. Calhoun County averages a 166-day frost-free season, with last frost around April 30 and first frost around October 13.

🌱

Your Calhoun County Garden Planner — Free

A 22-page printable planner built for Calhoun County (Zone 6a). 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 Calhoun County, MI. Local conditions may vary. Last updated: June 2026.

Sources & credits

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