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When to Plant Snap Peas in Sedgwick County, CO

Sedgwick County, Colorado Zone 5b May

May in Sedgwick County, Colorado — your action list

We've pulled the most time-sensitive tasks for Sedgwick County, Colorado this May and put them front and centre. Tackle them in order.

Avg. last frost May 4
Avg. first frost October 8
Soil temp (4") 36°F
Watering High
Pest pressure Low
Daylight 14.3 hrs
  1. Transplant snap peas outside

    Frost risk is low now in Sedgwick County, Colorado. If you've been covering beds overnight, you can stop.

  2. Plant snap peas from seed, right in the garden

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

Before June arrives, get these ready
  • 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.

Sedgwick County, Colorado is in USDA Zone 5b. The average last spring frost is May 4 and the first fall frost is October 8, giving you a growing season of approximately 157 days.

At an elevation of 7,669 feet, Sedgwick County receives approximately 20.5 inches of rainfall annually with predominantly loam soil. Summer highs average 86°F, providing good warmth for Snap Peas during the growing season.

Sedgwick County, CO (Zone 5b) Moderate season
157 days
Last Spring Frost May 4
157 growing days
First Fall Frost October 8

Sedgwick County Soil Profile

Soil Type

Loam

Soil pH

6.2-8.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (31 days to spare)
Start indoors: Mar 5 Transplant: May 14 🍅 Harvest: Jul 9 – Sep 3
Recommended (50%) ✓ Fits season (31 days to spare)
Start indoors: Mar 9 Transplant: May 18 🍅 Harvest: Jul 13 – Sep 7
Safe Start (90%) ✓ Fits season (28 days to spare)
Start indoors: Mar 21 Transplant: May 30 🍅 Harvest: Jul 25 – Sep 19

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 Sedgwick County

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

Soil pH

Your soil pH (6.2–8.3) overlaps with Snap Peas's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.2%). 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 157-day season

Sow every 6.3 weeks. Last sowing by Jul 30 to harvest before frost.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
0.6″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 254 gal / 100 sq ft
Drought risk

Water stress score is 10/10 — 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 1.3" 0" ❄️ Dormant
Feb 1.1" 0" ❄️ Dormant
Mar 1.7" 0" ❄️ Dormant
Apr 2.4" 0" ❄️ Dormant
May 3" 2.6" 0.4" 💧 Light watering
Jun 3" 1.5" 1.5" 🚿 Regular watering
Jul 3" 1.9" 1.1" 💧 Light watering
Aug 3" 2.1" 0.9" 💧 Light watering
Sep 3" 1.6" 1.4" 💧 Light watering
Oct 3" 1.6" 1.4" 💧 Light watering
Nov 1.6" 0" ❄️ Dormant
Dec 1.1" 0" ❄️ Dormant

Water needs are for active growing months only (May–Oct in Sedgwick 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 2,276 GDD Excellent fit

Snap Peas Planting Timeline — Sedgwick County, CO

Snap Peas Planting Calendar

Activity When Date Range
Start Indoors March 9 Mar 9 – Mar 23
Transplant Outdoors May 18 May 18 – Jun 1
Direct Sow May 11 May 11 – Jun 1
Harvest July 13 Jul 13 – Sep 7

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.7"/week · Only during dry spells

📅 Days to Maturity

55–70 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 5b

📆 Growing Season

157 days in Sedgwick County

Growing Tips for Snap Peas in Sedgwick County

Direct sow Snap Peas outdoors after May 04 in Sedgwick 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 Sedgwick County, CO?

Sedgwick County is in Zone 5b with an average last frost of May 4. Plan your Snap Peas planting based on this frost date — see the calendar above for exact timing.

What planting zone is Sedgwick County, CO?

Sedgwick County, Colorado is in USDA Hardiness Zone 5b. The average last spring frost is May 4 and first fall frost is October 8.

🌱

Your Sedgwick County Garden Planner — Free

A 24-page printable planner built for Sedgwick 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 Sedgwick County, CO. 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.