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When to Plant Lima Beans in Otoe County, NE

Otoe County, Nebraska Zone 6a May

This month in Otoe County, Nebraska

Here's what deserves your attention in Otoe County, Nebraska this month. Everything below is tailored to Zone 6a and timed around your local frost dates.

Avg. last frost April 24
Avg. first frost October 10
Soil temp (4") 57°F
Watering Moderate
Pest pressure Low
Daylight 14.3 hrs
  1. Put lima beans seeds straight in the ground

    Mark the row. Birds and stray feet both have opinions about unmarked beds.

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Lima beans are a warm-season legume producing large, creamy beans with a buttery texture. Both bush and pole varieties are available, with pole types yielding more.

Otoe County, Nebraska is in USDA Zone 6a. The average last spring frost is April 24 and the first fall frost is October 10, giving you a growing season of approximately 169 days.

At an elevation of 550 feet, Otoe County receives approximately 27.1 inches of rainfall annually with predominantly loam soil. Summer highs average 83°F, so choose short-season varieties of Lima Beans to ensure they mature before fall.

Otoe County, NE (Zone 6a) Moderate season
169 days
Last Spring Frost April 24
169 growing days
First Fall Frost October 10
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Otoe County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (60 days to spare)
Transplant: Apr 21 🍅 Harvest: Jun 23 – Aug 4
Recommended (50%) ✓ Fits season (64 days to spare)
Transplant: Apr 24 🍅 Harvest: Jun 26 – Aug 7
Safe Start (90%) ✓ Fits season (59 days to spare)
Transplant: May 11 🍅 Harvest: Jul 13 – Aug 24

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 Otoe County

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

Soil pH

Your soil pH (6.5–7.3) overlaps with Lima Beans's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is excellent (4.2%) — Lima Beans will thrive.

How to Plant Lima Beans

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

Succession Planting Lima Beans

3
successive plantings in your 169-day season

Sow every 6.9 weeks. Last sowing by Jul 12 to harvest before frost.

Plant Water Budget

Plant needs
0.9″/week
Rainfall provides
0.7″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 341 gal / 100 sq ft

Monthly Watering Guide for Lima Beans

Lima Beans needs approximately 0.9 inches of water per week (3.9" per month). Here's how your county's rainfall compares month by month.

Month Lima Beans Needs Rainfall You Supplement Action
Jan 0.7" 0" ❄️ Dormant
Feb 0.8" 0" ❄️ Dormant
Mar 2" 0" ❄️ Dormant
Apr 3.9" 2.8" 1.1" 💧 Light watering
May 3.9" 3.5" 0.4" 💧 Light watering
Jun 3.9" 4.7" 0" ✅ Rainfall sufficient
Jul 3.9" 3.7" 0.2" 💧 Light watering
Aug 3.9" 3" 0.9" 💧 Light watering
Sep 3.9" 2.6" 1.3" 💧 Light watering
Oct 3.9" 1.6" 2.3" 🚿 Regular watering
Nov 1" 0" ❄️ Dormant
Dec 0.6" 0" ❄️ Dormant

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

Lima 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.

Lima Beans needs ~919 GDD — county provides 2,070 GDD Excellent fit

Lima Beans Planting Timeline — Otoe County, NE

Lima Beans Planting Calendar

Activity When Date Range
Direct Sow May 1 May 1 – May 22
Harvest July 3 Jul 3 – Aug 14

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · Only during dry spells

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 6a

📆 Growing Season

169 days in Otoe County

Growing Tips for Lima Beans in Otoe County

Direct sow Lima Beans outdoors after April 24 in Otoe County when soil has warmed and frost danger has passed.

Common pests for Lima 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 soil is thoroughly warm at 65F or above. Do not soak seeds before planting as they may crack. Harvest when pods are plump but still green for fresh limas.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic
  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Lima Beans in Otoe County, NE?

Otoe County is in Zone 6a with an average last frost of April 24. Plan your Lima Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Otoe County, NE?

Otoe County, Nebraska is in USDA Hardiness Zone 6a. The average last spring frost is April 24 and first fall frost is October 10.

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Your Otoe County Garden Planner — Free

A 24-page printable planner built for Otoe 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 Otoe 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.