When to Plant Kabocha in Marshall County, KS
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.
Marshall County, Kansas is in USDA Zone 5b. The average last spring frost is April 22 and the first fall frost is October 14, giving you a growing season of approximately 175 days.
At an elevation of 840 feet, Marshall County receives approximately 22.7 inches of rainfall annually with predominantly loam soil. Summer highs average 84°F, so choose short-season varieties of Kabocha to ensure they mature before fall.
Marshall County Soil Profile
Soil Type
Loam
Soil pH
6.6-7.8
Drainage
Well Drained
Plant Planting Risk Windows
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 Marshall County
How your county's soil matches Kabocha's growing requirements.
Soil pH
Your soil pH (6.6–7.8) overlaps with Kabocha's range (6.0–7.5), though not a perfect match.
Soil Texture
The loam soil in Marshall County is excellent for Kabocha — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Kabocha.
Organic Matter
Organic matter is excellent (4.0%) — Kabocha will thrive.
How to Plant Kabocha
Plant Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Kabocha Planting Timeline — Marshall County, KS
Kabocha Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 18 | Mar 18 – Apr 1 |
| Transplant Outdoors | May 6 | May 6 – May 20 |
| Direct Sow | April 29 | Apr 29 – May 20 |
| Harvest | August 5 | Aug 5 – Sep 2 |
Plant 1" deep · 30" apart · Rows 42" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | — |
| 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: acceptable
🗺️ USDA Zone
Zone 5b
📆 Growing Season
175 days in Marshall County
Growing Tips for Kabocha in Marshall County
Direct sow Kabocha outdoors after April 22 in Marshall 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.
Marshall County receives only 23" 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
Level Up Your Garden
Kabocha in Other Locations
Frequently Asked Questions
When should I plant Kabocha in Marshall County, KS?
Marshall County is in Zone 5b with an average last frost of April 22. Plan your Kabocha planting based on this frost date — see the calendar above for exact timing.
What planting zone is Marshall County, KS?
Marshall County, Kansas is in USDA Hardiness Zone 5b. The average last spring frost is April 22 and first fall frost is October 14.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Marshall County gardeners in Zone 5b organize planting dates, track what's growing, and never miss a planting window.
Get Your Free Garden Planner →Free download. Plan your entire garden season in minutes.