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When to Plant Edamame in Lincoln County, NE

Lincoln County, Nebraska Zone 5b May

Your May planting checklist for Lincoln County, Nebraska

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost May 2
Avg. first frost October 6
Soil temp (4") 59°F
Watering Low
Pest pressure Low
Daylight 14.3 hrs
  1. Scatter edamame into prepared beds

    Your soil is 59°F — warm enough for these to germinate without babying.

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Edamame are soybeans harvested at the immature green stage for a sweet, nutty snack. They are high in protein and easy to grow in warm climates.

Lincoln County, Nebraska is in USDA Zone 5b. The average last spring frost is May 2 and the first fall frost is October 6, giving you a growing season of approximately 157 days.

At an elevation of 801 feet, Lincoln County receives approximately 34.8 inches of rainfall annually with predominantly loam soil. Summer highs average 86°F, providing good warmth for Edamame during the growing season.

Lincoln County, NE (Zone 5b) Moderate season
157 days
Last Spring Frost May 2
157 growing days
First Fall Frost October 6

Lincoln County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (36 days to spare)
Transplant: Apr 27 🍅 Harvest: Jul 13 – Aug 24
Recommended (50%) ✓ Fits season (38 days to spare)
Transplant: May 2 🍅 Harvest: Jul 18 – Aug 29
Safe Start (90%) ✓ Fits season (36 days to spare)
Transplant: May 14 🍅 Harvest: Jul 30 – Sep 10

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 Lincoln County

How your county's soil matches Edamame's growing requirements.

Soil pH

Your soil pH (6.5–7.7) is more alkaline than Edamame prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in Lincoln County is excellent for Edamame — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.4%). Annual compost additions will help Edamame.

How to Plant Edamame

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

Succession Planting Edamame

2
successive plantings in your 157-day season

Sow every 8.6 weeks. Last sowing by Jun 28 to harvest before frost.

Plant Water Budget

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

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

Monthly Watering Guide for Edamame

Edamame 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 Edamame Needs Rainfall You Supplement Action
Jan 2.4" 0" ❄️ Dormant
Feb 2" 0" ❄️ Dormant
Mar 3" 0" ❄️ Dormant
Apr 4" 0" ❄️ Dormant
May 3.9" 4.1" 0" ✅ Rainfall sufficient
Jun 3.9" 2.4" 1.5" 💧 Light watering
Jul 3.9" 3.3" 0.6" 💧 Light watering
Aug 3.9" 4" 0" ✅ Rainfall sufficient
Sep 3.9" 3" 0.9" 💧 Light watering
Oct 3.9" 2.7" 1.2" 💧 Light watering
Nov 2.3" 0" ❄️ Dormant
Dec 1.7" 0" ❄️ Dormant

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

Edamame 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.

Edamame needs ~1,269 GDD — county provides 2,276 GDD Excellent fit

Edamame Planting Timeline — Lincoln County, NE

Edamame Planting Calendar

Activity When Date Range
Direct Sow May 9 May 9 – May 30
Harvest July 25 Jul 25 – Sep 5

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 Harvest
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · Natural rainfall sufficient

📅 Days to Maturity

75–100 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 5b

📆 Growing Season

157 days in Lincoln County

Growing Tips for Edamame in Lincoln County

Direct sow Edamame outdoors after May 02 in Lincoln County when soil has warmed and frost danger has passed.

Common pests for Edamame 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 warm. Do not over-fertilize with nitrogen. Harvest when pods are plump and bright green but before they start to yellow. Steam or boil pods before eating.

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 Edamame in Lincoln County, NE?

Lincoln County is in Zone 5b with an average last frost of May 2. Plan your Edamame planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lincoln County, NE?

Lincoln County, Nebraska is in USDA Hardiness Zone 5b. The average last spring frost is May 2 and first fall frost is October 6.

🌱

Your Lincoln County Garden Planner — Free

A 24-page printable planner built for Lincoln County (Zone 5b). 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 Lincoln 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.