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When to Plant Kabocha in Cheyenne County, KS

Cheyenne County, Kansas Zone 6a May

Your May planting checklist for Cheyenne County, Kansas

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Cheyenne County, Kansas.

Avg. last frost May 4
Avg. first frost October 9
Soil temp (4") 57°F
Watering High
Pest pressure Low
Daylight 14.2 hrs
  1. Move kabocha into the garden

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

  2. Scatter kabocha into prepared beds

    Succession planting is the secret here. Put in a row now, another in 2 weeks, a third in 4.

A few tasks this May that'll pay off in June
  • Starting indoors: kabocha

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Kabocha is a Japanese winter squash with an exceptionally sweet, dense, chestnut-like flesh and dark green skin. It is a favorite in Asian cuisine for its rich, dry texture.

Cheyenne County, Kansas is in USDA Zone 6a. The average last spring frost is May 4 and the first fall frost is October 9, giving you a growing season of approximately 158 days.

At an elevation of 967 feet, Cheyenne County receives approximately 24.3 inches of rainfall annually with predominantly loam soil. Summer highs average 86°F, providing good warmth for Kabocha during the growing season.

Cheyenne County, KS (Zone 6a) Moderate season
158 days
Last Spring Frost May 4
158 growing days
First Fall Frost October 9

Cheyenne County Soil Profile

Soil Type

Loam

Soil pH

6.3-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (25 days to spare)
Start indoors: Mar 26 Transplant: May 14 🍅 Harvest: Aug 13 – Sep 10
Recommended (50%) ✓ Fits season (25 days to spare)
Start indoors: Mar 30 Transplant: May 18 🍅 Harvest: Aug 17 – Sep 14
Safe Start (90%) ✓ Fits season (21 days to spare)
Start indoors: Apr 16 Transplant: Jun 4 🍅 Harvest: Sep 3 – Oct 1

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 Cheyenne County

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

Soil pH

Your soil pH (6.3–7.2) is within Kabocha's preferred range (6.0–7.5).

Soil Texture

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

Drainage

Drainage is adequate for Kabocha.

Organic Matter

Organic matter is moderate (3.5%). Annual compost additions will help Kabocha.

How to Plant Kabocha

1"
Planting Depth
30"
Between Plants
42"
Between Rows

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.7″/week
You supply
0.8″/week
Watering frequency 2-3 times/week
Season total 1,104 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Kabocha

Kabocha needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Kabocha Needs Rainfall You Supplement Action
Jan 1.7" 0" ❄️ Dormant
Feb 1.5" 0" ❄️ Dormant
Mar 2.1" 0" ❄️ Dormant
Apr 2.4" 0" ❄️ Dormant
May 4.3" 2.6" 1.7" 💧 Light watering
Jun 4.3" 1.7" 2.6" 🚿 Regular watering
Jul 4.3" 2.4" 1.9" 💧 Light watering
Aug 4.3" 2.5" 1.8" 💧 Light watering
Sep 4.3" 2" 2.3" 🚿 Regular watering
Oct 4.3" 2.3" 2" 💧 Light watering
Nov 1.7" 0" ❄️ Dormant
Dec 1.3" 0" ❄️ Dormant

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

Kabocha 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.

Kabocha needs ~1,341 GDD — county provides 2,291 GDD Excellent fit

Kabocha Planting Timeline — Cheyenne County, KS

Kabocha Planting Calendar

Activity When Date Range
Start Indoors March 30 Mar 30 – Apr 13
Transplant Outdoors May 18 May 18 – Jun 1
Direct Sow May 11 May 11 – Jun 1
Harvest August 17 Aug 17 – Sep 14

Plant 1" deep · 30" apart · Rows 42" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 2-3 times/week

📅 Days to Maturity

85–100 days

🧪 Soil pH

Needs 6–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 6a

📆 Growing Season

158 days in Cheyenne County

Growing Tips for Kabocha in Cheyenne County

Direct sow Kabocha outdoors after May 04 in Cheyenne County when soil has warmed and frost danger has passed.

Common pests for Kabocha in this region include squash vine borer and cucumber beetles. Use row covers early in the season and inspect plants weekly.

Cheyenne County receives only 24" of rain annually. Kabocha needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Direct sow after frost or start indoors. Harvest when the skin is hard and dull. The stem should be dry and corky. Stores well for 3-4 months in a cool, dry place.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Kabocha in Cheyenne County, KS?

Cheyenne County is in Zone 6a with an average last frost of May 4. Plan your Kabocha planting based on this frost date — see the calendar above for exact timing.

What planting zone is Cheyenne County, KS?

Cheyenne County, Kansas is in USDA Hardiness Zone 6a. The average last spring frost is May 4 and first fall frost is October 9.

🌱

Your Cheyenne County Garden Planner — Free

A 24-page printable planner built for Cheyenne 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 Cheyenne 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.