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When to Plant Snap Peas in Johnson County, NE

Johnson County, Nebraska Zone 5b May

Your May planting checklist for Johnson County, Nebraska

Here's what deserves your attention in Johnson County, Nebraska this month. Everything below is tailored to Zone 5b and timed around your local frost dates.

Avg. last frost April 24
Avg. first frost October 7
Soil temp (4") 57°F
Watering Moderate
Pest pressure Low
Daylight 14.2 hrs
  1. Move snap peas from tray to bed

    Bring a watering can to the bed. Each transplant gets a drink the moment it's in the ground, not ten minutes later.

  2. Seed snap peas outdoors

    Rake a smooth bed, make a shallow furrow, drop seeds at the spacing on the packet, water gently, walk away.

To set up a strong June, finish these tasks
  • Starting indoors: snap peas

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Snap peas have edible pods with plump, sweet peas inside, combining the best features of snow peas and garden peas. They are a garden favorite for fresh eating.

Johnson County, Nebraska is in USDA Zone 5b. The average last spring frost is April 24 and the first fall frost is October 7, giving you a growing season of approximately 166 days.

At an elevation of 658 feet, Johnson County receives approximately 21.3 inches of rainfall annually with predominantly loam soil. Summer highs average 86°F, providing good warmth for Snap Peas during the growing season.

Johnson County, NE (Zone 5b) Moderate season
166 days
Last Spring Frost April 24
166 growing days
First Fall Frost October 7
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Johnson County Soil Profile

Soil Type

Loam

Soil pH

6.3-7.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (39 days to spare)
Start indoors: Feb 24 Transplant: May 5 🍅 Harvest: Jun 30 – Aug 25
Recommended (50%) ✓ Fits season (40 days to spare)
Start indoors: Feb 27 Transplant: May 8 🍅 Harvest: Jul 3 – Aug 28
Safe Start (90%) ✓ Fits season (38 days to spare)
Start indoors: Mar 16 Transplant: May 25 🍅 Harvest: Jul 20 – Sep 14

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 Johnson County

How your county's soil matches Snap Peas's growing requirements.

Soil pH

Your soil pH (6.3–7.5) is within Snap Peas's preferred range (6.0–7.5).

Soil Texture

The loam soil in Johnson County is excellent for Snap Peas — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Snap Peas.

Organic Matter

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

How to Plant Snap Peas

1"
Planting Depth
4"
Between Plants
18"
Between Rows

Succession Planting Snap Peas

3
successive plantings in your 166-day season

Sow every 6.3 weeks. Last sowing by Jul 29 to harvest before frost.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
0.5″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 658 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Snap Peas

Snap Peas needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.

Month Snap Peas Needs Rainfall You Supplement Action
Jan 0.5" 0" ❄️ Dormant
Feb 0.7" 0" ❄️ Dormant
Mar 1.4" 0" ❄️ Dormant
Apr 3" 1.9" 1.1" 💧 Light watering
May 3" 2.8" 0.2" 💧 Light watering
Jun 3" 3.3" 0" ✅ Rainfall sufficient
Jul 3" 3" 0" ✅ Rainfall sufficient
Aug 3" 2.6" 0.4" 💧 Light watering
Sep 3" 2.2" 0.8" 💧 Light watering
Oct 3" 1.5" 1.5" 🚿 Regular watering
Nov 0.8" 0" ❄️ Dormant
Dec 0.5" 0" ❄️ Dormant

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

Snap Peas 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.

Snap Peas needs ~906 GDD — county provides 2,407 GDD Excellent fit

Snap Peas Planting Timeline — Johnson County, NE

Snap Peas Planting Calendar

Activity When Date Range
Start Indoors February 27 Feb 27 – Mar 13
Transplant Outdoors May 8 May 8 – May 22
Direct Sow May 1 May 1 – May 22
Harvest July 3 Jul 3 – Aug 28

Plant 1" deep · 4" apart · Rows 18" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.7"/week · 1-2 times/week

📅 Days to Maturity

55–70 days

🧪 Soil pH

Needs 6–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 5b

📆 Growing Season

166 days in Johnson County

Growing Tips for Snap Peas in Johnson County

Direct sow Snap Peas outdoors after April 24 in Johnson County when soil has warmed and frost danger has passed.

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

General growing tips

Direct sow in early spring as soon as soil can be worked. Provide a trellis 4-6 feet tall. Harvest when pods are plump and snap cleanly when bent.

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 Snap Peas in Johnson County, NE?

Johnson County is in Zone 5b with an average last frost of April 24. Plan your Snap Peas planting based on this frost date — see the calendar above for exact timing.

What planting zone is Johnson County, NE?

Johnson County, Nebraska is in USDA Hardiness Zone 5b. The average last spring frost is April 24 and first fall frost is October 7.

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Your Johnson County Garden Planner — Free

A 24-page printable planner built for Johnson 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 Johnson 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.