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When to Plant Black Beans in Keya Paha County, NE

Keya Paha County, Nebraska Zone 5a May

This month in Keya Paha County, Nebraska

May is a pivotal month for Keya Paha County, Nebraska gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost May 10
Avg. first frost October 9
Soil temp (4") 55°F
Watering Low
Pest pressure Low
Daylight 14.5 hrs
  1. Put black beans seeds straight in the ground

    Keep the top inch of soil moist until germination — a gentle morning watering for 5–7 days does the job.

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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.

Keya Paha County, Nebraska is in USDA Zone 5a. The average last spring frost is May 10 and the first fall frost is October 9, giving you a growing season of approximately 152 days.

At an elevation of 1,079 feet, Keya Paha County receives approximately 31.8 inches of rainfall annually with predominantly loam soil. Summer highs average 83°F, so choose short-season varieties of Black Beans to ensure they mature before fall.

Keya Paha County, NE (Zone 5a) Moderate season
152 days
Last Spring Frost May 10
152 growing days
First Fall Frost October 9
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Keya Paha County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (16 days to spare)
Transplant: Apr 30 🍅 Harvest: Jul 30 – Sep 17
Recommended (50%) ✓ Fits season (12 days to spare)
Transplant: May 10 🍅 Harvest: Aug 9 – Sep 27
Safe Start (90%) ✓ Fits season (17 days to spare)
Transplant: May 19 🍅 Harvest: Aug 18 – Oct 6

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 Keya Paha County

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

Soil pH

Your soil pH (6.5–7.5) is within Black Beans's preferred range (6.0–7.5).

Soil Texture

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

Organic Matter

Organic matter is excellent (4.1%) — Black Beans will thrive.

How to Plant Black Beans

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

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 164 gal / 100 sq ft

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 0.8" 0" ❄️ Dormant
Feb 1" 0" ❄️ Dormant
Mar 1.7" 0" ❄️ Dormant
Apr 3.2" 0" ❄️ Dormant
May 4.3" 4.7" 0" ✅ Rainfall sufficient
Jun 4.3" 5.4" 0" ✅ Rainfall sufficient
Jul 4.3" 4.3" 0" ✅ Rainfall sufficient
Aug 4.3" 3.9" 0.4" 💧 Light watering
Sep 4.3" 3.2" 1.1" 💧 Light watering
Oct 4.3" 1.8" 2.5" 🚿 Regular watering
Nov 1" 0" ❄️ Dormant
Dec 0.8" 0" ❄️ Dormant

Water needs are for active growing months only (May–Oct in Keya Paha 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 ~1,286 GDD — county provides 1,862 GDD Excellent fit

Black Beans Planting Timeline — Keya Paha County, NE

Black Beans Planting Calendar

Activity When Date Range
Direct Sow May 17 May 17 – Jun 7
Harvest August 16 Aug 16 – Oct 4

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
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

90–120 days

🧪 Soil pH

Needs 6–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 5a

📆 Growing Season

152 days in Keya Paha County

Growing Tips for Black Beans in Keya Paha County

Direct sow Black Beans outdoors after May 10 in Keya Paha 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 Keya Paha County, NE?

Keya Paha County is in Zone 5a with an average last frost of May 10. Plan your Black Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Keya Paha County, NE?

Keya Paha County, Nebraska is in USDA Hardiness Zone 5a. The average last spring frost is May 10 and first fall frost is October 9.

🌱

Your Keya Paha County Garden Planner — Free

A 24-page printable planner built for Keya Paha 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 Keya Paha County, NE. Local conditions may vary. Last updated: May 2026.

Sources & credits

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