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When to Plant Acorn Squash in Mitchell County, KS

Acorn squash is a small winter squash with dark green, ribbed skin and mildly sweet orange flesh. It is perfect for stuffing and roasting as individual servings.

Mitchell County, Kansas is in USDA Zone 5b. The average last spring frost is April 16 and the first fall frost is October 18, giving you a growing season of approximately 185 days.

At an elevation of 627 feet, Mitchell County receives approximately 34.3 inches of rainfall annually with predominantly loam soil. Summer highs average 84ยฐF, so choose short-season varieties of Acorn Squash to ensure they mature before fall.

Mitchell County, KS (Zone 5b) Moderate season
185 days
Last Spring Frost April 16
185 growing days
First Fall Frost October 18

Mitchell County Soil Profile

Soil Type

Loam

Soil pH

6.7-7.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (50 days to spare)
Start indoors: Mar 8 Transplant: Apr 26 🍅 Harvest: Jul 19 – Aug 23
Recommended (50%) ✓ Fits season (52 days to spare)
Start indoors: Mar 12 Transplant: Apr 30 🍅 Harvest: Jul 23 – Aug 27
Safe Start (90%) ✓ Fits season (51 days to spare)
Start indoors: Mar 26 Transplant: May 14 🍅 Harvest: Aug 6 – Sep 10

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 Mitchell County

How your county's soil matches Acorn Squash's growing requirements.

Soil pH

Your soil pH (6.7โ€“7.1) overlaps with Acorn Squash's range (5.5โ€“7.0), though not a perfect match.

Soil Texture

The loam soil in Mitchell County is excellent for Acorn Squash โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.6%). Annual compost additions will help Acorn Squash.

How to Plant Acorn Squash

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

Succession Planting Acorn Squash

2
successive plantings in your 185-day season

Sow every 9.1 weeks. Last sowing by Jul 10 to harvest before frost.

Plant Water Budget

Plant needs
1.1″/week
Rainfall provides
0.8″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 635 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Monthly Watering Guide for Acorn Squash

Acorn Squash needs approximately 1.1 inches of water per week (4.8" per month). Here's how your county's rainfall compares month by month.

Month Acorn Squash Needs Rainfall You Supplement Action
Jan โ€” 1" 0" โ„๏ธ Dormant
Feb โ€” 1" 0" โ„๏ธ Dormant
Mar โ€” 2.5" 0" โ„๏ธ Dormant
Apr 4.8" 3.6" 1.2" ๐Ÿ’ง Light watering
May 4.8" 4.6" 0.2" ๐Ÿ’ง Light watering
Jun 4.8" 5.9" 0" โœ… Rainfall sufficient
Jul 4.8" 4.5" 0.3" ๐Ÿ’ง Light watering
Aug 4.8" 3.6" 1.2" ๐Ÿ’ง Light watering
Sep 4.8" 3.6" 1.2" ๐Ÿ’ง Light watering
Oct 4.8" 2" 2.8" ๐Ÿšฟ Regular watering
Nov โ€” 1.3" 0" โ„๏ธ Dormant
Dec โ€” 0.8" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Aprโ€“Oct in Mitchell County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Acorn Squash 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" โ€” every day above 50ยฐF 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.

Acorn Squash needs ~1,170 GDD — county provides 2,405 GDD Excellent fit

Acorn Squash Planting Timeline โ€” Mitchell County, KS

Acorn Squash Planting Calendar

Activity When Date Range
Start Indoors March 12 Mar 12 โ€“ Mar 26
Transplant Outdoors April 30 Apr 30 โ€“ May 14
Direct Sow April 23 Apr 23 โ€“ May 14
Harvest July 23 Jul 23 โ€“ Aug 27

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1.1"/week ยท 1-2 times/week

๐Ÿ“… Days to Maturity

80โ€“100 days

๐Ÿงช Soil pH

Needs 5.5โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 5b

๐Ÿ“† Growing Season

185 days in Mitchell County

Growing Tips for Acorn Squash in Mitchell County

Direct sow Acorn Squash outdoors after April 16 in Mitchell County when soil has warmed and frost danger has passed.

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

General growing tips

Direct sow after last frost. Harvest when the ground spot turns orange and the skin is hard. Acorn squash has a shorter storage life than butternut, lasting about 2 months.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Acorn Squash in Mitchell County, KS?

Mitchell County is in Zone 5b with an average last frost of April 16. Plan your Acorn Squash planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Mitchell County, KS?

Mitchell County, Kansas is in USDA Hardiness Zone 5b. The average last spring frost is April 16 and first fall frost is October 18.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Mitchell County gardeners in Zone 5b organize planting dates, track what's growing, and never miss a planting window.

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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 Mitchell County, KS. Local conditions may vary. Last updated: April 2026.