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When to Plant Acorn Squash in Saunders County, NE

Saunders County, Nebraska Zone 5b May

May to-do list for Saunders County, Nebraska

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

Avg. last frost April 22
Avg. first frost October 11
Soil temp (4") 58°F
Watering Moderate
Pest pressure Low
Daylight 14.3 hrs
  1. Plant out acorn squash

    Plant tomatoes deep — bury the stem up to the first true leaves to grow extra roots. Everything else goes in at the same depth it grew in the tray.

  2. Get acorn squash seeds going inside

    You're about 20 weeks out from your last frost — the perfect window to get these germinating indoors.

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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.

Saunders County, Nebraska is in USDA Zone 5b. The average last spring frost is April 22 and the first fall frost is October 11, giving you a growing season of approximately 172 days.

At an elevation of 705 feet, Saunders County receives approximately 22.5 inches of rainfall annually with predominantly loam soil. Summer highs average 87°F, providing good warmth for Acorn Squash during the growing season.

Saunders County, NE (Zone 5b) Moderate season
172 days
Last Spring Frost April 22
172 growing days
First Fall Frost October 11

Saunders County Soil Profile

Soil Type

Loam

Soil pH

6.6-7.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (39 days to spare)
Start indoors: Mar 13 Transplant: May 1 🍅 Harvest: Jul 24 – Aug 28
Recommended (50%) ✓ Fits season (39 days to spare)
Start indoors: Mar 18 Transplant: May 6 🍅 Harvest: Jul 29 – Sep 2
Safe Start (90%) ✓ Fits season (36 days to spare)
Start indoors: Apr 3 Transplant: May 22 🍅 Harvest: Aug 14 – Sep 18

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 Saunders County

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

Soil pH

Your soil pH (6.6–7.5) is more alkaline than Acorn Squash prefers (5.5–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.9%). 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 172-day season

Sow every 9.1 weeks. Last sowing by Jul 03 to harvest before frost.

Plant Water Budget

Plant needs
1.1″/week
Rainfall provides
0.6″/week
You supply
0.7″/week
Watering frequency 1-2 times/week
Season total 1,011 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 0.6" 0" ❄️ Dormant
Feb 0.7" 0" ❄️ Dormant
Mar 1.5" 0" ❄️ Dormant
Apr 4.8" 2.6" 2.2" 💧 Light watering
May 4.8" 3" 1.8" 💧 Light watering
Jun 4.8" 3.7" 1.1" 💧 Light watering
Jul 4.8" 3.1" 1.7" 💧 Light watering
Aug 4.8" 2.5" 2.3" 💧 Light watering
Sep 4.8" 2" 2.8" 🚿 Regular watering
Oct 4.8" 1.5" 3.3" 🚿 Regular watering
Nov 0.8" 0" ❄️ Dormant
Dec 0.5" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Saunders 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 ~1,372 GDD — county provides 2,623 GDD Excellent fit

Acorn Squash Planting Timeline — Saunders County, NE

Acorn Squash 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 July 29 Jul 29 – Sep 2

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.1"/week · 1-2 times/week

📅 Days to Maturity

80–100 days

🧪 Soil pH

Needs 5.5–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 5b

📆 Growing Season

172 days in Saunders County

Growing Tips for Acorn Squash in Saunders County

Direct sow Acorn Squash outdoors after April 22 in Saunders 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.

Saunders County receives only 22" of rain annually. Acorn Squash needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

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 Saunders County, NE?

Saunders County is in Zone 5b with an average last frost of April 22. Plan your Acorn Squash planting based on this frost date — see the calendar above for exact timing.

What planting zone is Saunders County, NE?

Saunders County, Nebraska is in USDA Hardiness Zone 5b. The average last spring frost is April 22 and first fall frost is October 11.

🌱

Your Saunders County Garden Planner — Free

A 24-page printable planner built for Saunders County (Zone 5b). 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 Saunders County, NE. 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.