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When to Plant Black Beans in Franklin County, VT

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

Franklin County, Vermont is in USDA Zone 5a. The average last spring frost is May 7 and the first fall frost is October 9, giving you a growing season of approximately 155 days.

At an elevation of 512 feet, Franklin County receives approximately 39.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 80°F, so choose short-season varieties of Black Beans to ensure they mature before fall.

Franklin County, VT (Zone 5a) Moderate season
155 days
Last Spring Frost May 7
155 growing days
First Fall Frost October 9

Franklin County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Black Beans Planting Timeline — Franklin County, VT

Black Beans Planting Calendar

Activity When Date Range
Direct Sow May 14 May 14 – Jun 4
Harvest August 13 Aug 13 – Oct 1

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

Month-by-Month Timeline

MonthActivities
January
February
March
April
May Direct Sow
June Direct Sow
July
August Harvest
September Harvest
October Harvest
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 5a

📆 Growing Season

155 days in Franklin County

Growing Tips for Franklin 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 Franklin County, VT?

Franklin County is in Zone 5a with an average last frost of May 7. Plan your Black Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Franklin County, VT?

Franklin County, Vermont is in USDA Hardiness Zone 5a. The average last spring frost is May 7 and first fall frost is October 9.

🌱

Your Franklin County Garden Planner — Free

A 22-page printable planner built for Franklin 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.

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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 Franklin County, VT. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.