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When to plant Acorn Squash in Wright County County,

In Zone 4b (Wright County County), direct-sow Acorn Squash between May 15 and June 5 for spring, after the May 1 last-frost mark.

When to Plant Acorn Squash in Wright County, MN

Wright County, Minnesota Zone 4b June

June to-do list for Wright County, Minnesota

June rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Wright County, Minnesota.

Avg. last frost May 1
Avg. first frost October 6
Soil temp (4") 63°F
Watering Low
Pest pressure High
Daylight 15.4 hrs
  1. Time to start acorn squash inside

    Your window is short. These crops want several weeks of indoor growth before they go outside.

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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.

Wright County, Minnesota is in USDA Zone 4b. The average last spring frost is May 1 and the first fall frost is October 6, giving you a growing season of approximately 158 days.

At an elevation of 997 feet, Wright County receives approximately 32.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84°F, so choose short-season varieties of Acorn Squash to ensure they mature before fall.

Wright County, MN (Zone 4b) Moderate season
158 days
Last Spring Frost May 1
158 growing days
First Fall Frost October 6

Wright County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-7.2

Drainage

Well Drained

Acorn Squash Planting Risk Windows

Early Start (70% safe) ✓ Fits season (16 days to spare)
Start indoors: Mar 14 Transplant: May 16 🍅 Harvest: Aug 8 – Sep 12
Recommended (50%) ✓ Fits season (18 days to spare)
Start indoors: Mar 20 Transplant: May 22 🍅 Harvest: Aug 14 – Sep 18
Safe Start (90%) ✓ Fits season (14 days to spare)
Start indoors: Apr 6 Transplant: Jun 8 🍅 Harvest: Aug 31 – Oct 5

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 Wright County

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

Soil pH

Your soil pH (5.7–7.2) overlaps with Acorn Squash's range (5.5–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Wright County is excellent for Acorn Squash — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is excellent (4.7%) — Acorn Squash will thrive.

How to Plant Acorn Squash

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

Succession Planting Acorn Squash

2
successive plantings in your 158-day season

Sow every 9.1 weeks. Last sowing by Jun 28 to harvest before frost.

Acorn Squash Water Budget

Plant needs
1.1″/week
Rainfall provides
0.9″/week
You supply
0.3″/week
Watering frequency Only during dry spells
Season total 403 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — 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 1.2" 0" ❄️ Dormant
Feb 1.3" 0" ❄️ Dormant
Mar 2.1" 0" ❄️ Dormant
Apr 3.2" 0" ❄️ Dormant
May 4.8" 3.7" 1.1" 💧 Light watering
Jun 4.8" 3.9" 0.9" 💧 Light watering
Jul 4.8" 3.9" 0.9" 💧 Light watering
Aug 4.8" 3.3" 1.5" 💧 Light watering
Sep 4.8" 3.3" 1.5" 💧 Light watering
Oct 4.8" 2.7" 2.1" 💧 Light watering
Nov 2" 0" ❄️ Dormant
Dec 1.6" 0" ❄️ Dormant

Water needs are for active growing months only (May–Oct in Wright County). Supplement amounts are based on average rainfall — 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" — 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.

Acorn Squash needs ~1,170 GDD — county provides 2,054 GDD Excellent fit

Acorn Squash Planting Timeline — Wright County, MN

Acorn Squash Planting Calendar

Activity When Date Range
Start Indoors March 20 Mar 20 – Apr 3
Transplant Outdoors May 22 May 22 – Jun 5
Direct Sow May 15 May 15 – Jun 5
Harvest August 14 Aug 14 – Sep 18

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

1.1"/week · Only during dry spells

📅 Days to Maturity

80–100 days

🧪 Soil pH

Needs 5.5–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 4b

📆 Growing Season

158 days in Wright County

Growing Tips for Acorn Squash in Wright County

Direct sow Acorn Squash outdoors after May 01 in Wright 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 Wright County, MN?

Wright County is in Zone 4b with an average last frost of May 1. Plan your Acorn Squash planting based on this frost date — see the calendar above for exact timing.

What planting zone is Wright County, MN?

Wright County, Minnesota is in USDA Hardiness Zone 4b. The average last spring frost is May 1 and first fall frost is October 6.

When should I plant Acorn Squash in Wright County, ?

In Wright County, , plant Acorn Squash after the last frost (around May 1) and before the first frost (around October 6). Best results when soil holds above 50°F.

What growing zone is Wright County, for Acorn Squash?

Wright County sits in USDA Zone 4b. Acorn Squash grows reliably in zones 3a through 11b, so it's a good fit here.

Can Acorn Squash grow in Wright County's climate?

Yes — Acorn Squash grows well in Wright County's temperate climate. Wright County averages a 158-day frost-free season, with last frost around May 1 and first frost around October 6.

🌱

Your Wright County Garden Planner — Free

A 22-page printable planner built for Wright County (Zone 4b). 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 Wright County, MN. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.