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When to Plant Snap Peas in Pottawatomie County, KS

Pottawatomie County, Kansas Zone 6a May

What to do in May

Your garden in Pottawatomie County, Kansas is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost April 15
Avg. first frost October 20
Soil temp (4") 62°F
Watering Low
Pest pressure Low
Daylight 14.2 hrs
Before June arrives, get these ready
  • Starting indoors: snap peas
  • First harvests: 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.

Pottawatomie County, Kansas is in USDA Zone 6a. The average last spring frost is April 15 and the first fall frost is October 20, giving you a growing season of approximately 188 days.

At an elevation of 625 feet, Pottawatomie County receives approximately 30.6 inches of rainfall annually with predominantly loam soil. Summer highs average 86°F, providing good warmth for Snap Peas during the growing season.

Pottawatomie County, KS (Zone 6a) Moderate season
188 days
Last Spring Frost April 15
188 growing days
First Fall Frost October 20

Pottawatomie County Soil Profile

Soil Type

Loam

Soil pH

6.7-7.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (60 days to spare)
Start indoors: Feb 14 Transplant: Apr 25 🍅 Harvest: Jun 20 – Aug 15
Recommended (50%) ✓ Fits season (62 days to spare)
Start indoors: Feb 18 Transplant: Apr 29 🍅 Harvest: Jun 24 – Aug 19
Safe Start (90%) ✓ Fits season (66 days to spare)
Start indoors: Mar 6 Transplant: May 15 🍅 Harvest: Jul 10 – Sep 4

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 Pottawatomie County

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

Soil pH

Your soil pH (6.7–7.6) overlaps with Snap Peas's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is excellent (4.2%) — Snap Peas will thrive.

How to Plant Snap Peas

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

Succession Planting Snap Peas

4
successive plantings in your 188-day season

Sow every 6.3 weeks. Last sowing by Aug 11 to harvest before frost.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
0.7″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 33 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 0.8" 0" ❄️ Dormant
Feb 1.1" 0" ❄️ Dormant
Mar 2.1" 0" ❄️ Dormant
Apr 3" 3.4" 0" ✅ Rainfall sufficient
May 3" 4" 0" ✅ Rainfall sufficient
Jun 3" 5" 0" ✅ Rainfall sufficient
Jul 3" 3.9" 0" ✅ Rainfall sufficient
Aug 3" 3.8" 0" ✅ Rainfall sufficient
Sep 3" 2.7" 0.3" 💧 Light watering
Oct 3" 2" 1" 💧 Light watering
Nov 1.1" 0" ❄️ Dormant
Dec 0.7" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Pottawatomie 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 2,726 GDD Excellent fit

Snap Peas Planting Timeline — Pottawatomie County, KS

Snap Peas Planting Calendar

Activity When Date Range
Start Indoors February 18 Feb 18 – Mar 4
Transplant Outdoors April 29 Apr 29 – May 13
Direct Sow April 22 Apr 22 – May 13
Harvest June 24 Jun 24 – Aug 19

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors
April Transplant Outdoors Direct Sow
May Transplant Outdoors Direct Sow
June Harvest
July Harvest
August Harvest
September
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 6a

📆 Growing Season

188 days in Pottawatomie County

Growing Tips for Snap Peas in Pottawatomie County

Direct sow Snap Peas outdoors after April 15 in Pottawatomie 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 Pottawatomie County, KS?

Pottawatomie County is in Zone 6a with an average last frost of April 15. Plan your Snap Peas planting based on this frost date — see the calendar above for exact timing.

What planting zone is Pottawatomie County, KS?

Pottawatomie County, Kansas is in USDA Hardiness Zone 6a. The average last spring frost is April 15 and first fall frost is October 20.

🌱

Your Pottawatomie County Garden Planner — Free

A 24-page printable planner built for Pottawatomie 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 Pottawatomie County, KS. 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.