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When to Plant Black Beans in Calhoun County, WV

Calhoun County, West Virginia Zone 6b May

Your May gardening checklist

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Calhoun County, West Virginia.

Avg. last frost April 25
Avg. first frost October 22
Soil temp (4") 54°F
Watering Moderate
Pest pressure Low
Daylight 14.1 hrs
  1. Direct-sow black beans

    Your soil is 54°F — warm enough for these to germinate without babying.

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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, West Virginia is in USDA Zone 6b. The average last spring frost is April 25 and the first fall frost is October 22, giving you a growing season of approximately 180 days.

At an elevation of 3,223 feet, Calhoun County receives approximately 48.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Black Beans during the growing season.

Calhoun County, WV (Zone 6b) Moderate season
180 days
Last Spring Frost April 25
180 growing days
First Fall Frost October 22
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Calhoun County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (44 days to spare)
Transplant: Apr 16 🍅 Harvest: Jul 16 – Sep 3
Recommended (50%) ✓ Fits season (40 days to spare)
Transplant: Apr 25 🍅 Harvest: Jul 25 – Sep 12
Safe Start (90%) ✓ Fits season (31 days to spare)
Transplant: May 15 🍅 Harvest: Aug 14 – Oct 2

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Soil Compatibility in Calhoun County

How your county's soil matches Black Beans's growing requirements.

Soil pH

Your soil pH (5.3–6.7) overlaps with Black Beans's range (6.0–7.5), though not a perfect match.

Soil Texture

The silt loam soil in Calhoun County is excellent for Black Beans — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.9%). Annual compost additions will help Black Beans.

How to Plant Black Beans

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Black Beans

Black Beans needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Black Beans Needs Rainfall You Supplement Action
Jan 3.7" 0" ❄️ Dormant
Feb 4.3" 0" ❄️ Dormant
Mar 4.4" 0" ❄️ Dormant
Apr 4.3" 3.3" 1" 💧 Light watering
May 4.3" 3.4" 0.9" 💧 Light watering
Jun 4.3" 4.9" 0" ✅ Rainfall sufficient
Jul 4.3" 5.7" 0" ✅ Rainfall sufficient
Aug 4.3" 4.6" 0" ✅ Rainfall sufficient
Sep 4.3" 4.2" 0.1" 💧 Light watering
Oct 4.3" 2.8" 1.5" 💧 Light watering
Nov 4.2" 0" ❄️ Dormant
Dec 3.6" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Calhoun County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Black Beans Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Black Beans needs ~1,522 GDD — county provides 2,610 GDD Excellent fit

Black Beans Planting Timeline — Calhoun County, WV

Black Beans Planting Calendar

Activity When Date Range
Direct Sow May 2 May 2 – May 23
Harvest August 1 Aug 1 – Sep 19

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
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

90–120 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 6b

📆 Growing Season

180 days in Calhoun County

Growing Tips for Black Beans in Calhoun County

Direct sow Black Beans outdoors after April 25 in Calhoun County when soil has warmed and frost danger has passed.

Common pests for Black Beans in this region include bean beetles and aphids. Use row covers early in the season and inspect plants weekly.

General growing tips

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, WV?

Calhoun County is in Zone 6b with an average last frost of April 25. Plan your Black Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Calhoun County, WV?

Calhoun County, West Virginia is in USDA Hardiness Zone 6b. The average last spring frost is April 25 and first fall frost is October 22.

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Your Calhoun County Garden Planner — Free

A 24-page printable planner built for Calhoun County (Zone 6b). 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, WV. Local conditions may vary. Last updated: May 2026.

Sources & credits

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