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When to Plant Spaghetti Squash in Keya Paha County, NE

Spaghetti squash is a winter squash whose cooked flesh separates into pasta-like strands. It is a popular low-carb alternative to pasta.

Keya Paha County, Nebraska is in USDA Zone 4b. The average last spring frost is May 10 and the first fall frost is October 9, giving you a growing season of approximately 152 days.

At an elevation of 1,079 feet, Keya Paha County receives approximately 31.8 inches of rainfall annually with predominantly loam soil. Summer highs average 83ยฐF, so choose short-season varieties of Spaghetti Squash to ensure they mature before fall.

Keya Paha County, NE (Zone 4b) Moderate season
152 days
Last Spring Frost May 10
152 growing days
First Fall Frost October 9

Keya Paha County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (16 days to spare)
Start indoors: Mar 19 Transplant: May 21 🍅 Harvest: Aug 20 – Sep 17
Recommended (50%) ✓ Fits season (12 days to spare)
Start indoors: Mar 29 Transplant: May 31 🍅 Harvest: Aug 30 – Sep 27
Safe Start (90%) ✓ Fits season (17 days to spare)
Start indoors: Apr 7 Transplant: Jun 9 🍅 Harvest: Sep 8 – Oct 6

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.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 164 gal / 100 sq ft
Spaghetti Squash needs ~1,133 GDD — county provides 1,862 GDD Excellent fit

Spaghetti Squash Planting Timeline โ€” Keya Paha County, NE

Spaghetti Squash Planting Calendar

Activity When Date Range
Start Indoors March 29 Mar 29 โ€“ Apr 12
Transplant Outdoors May 31 May 31 โ€“ Jun 14
Direct Sow May 24 May 24 โ€“ Jun 14
Harvest August 30 Aug 30 โ€“ Sep 27

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

85โ€“100 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 4b

Growing Season

152 days

Growing Tips for Keya Paha County

Direct sow on mounds after last frost. Harvest when skin turns golden yellow and is hard. Store in a cool, dry place for 2-3 months. Bake or microwave halves until tender.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Level Up Your Garden

Frequently Asked Questions

When should I plant Spaghetti Squash in Keya Paha County, NE?

Keya Paha County is in Zone 4b with an average last frost of May 10. Plan your Spaghetti Squash planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Keya Paha County, NE?

Keya Paha County, Nebraska is in USDA Hardiness Zone 4b. The average last spring frost is May 10 and first fall frost is October 9.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Keya Paha County gardeners in Zone 4b 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 Keya Paha County, NE. Local conditions may vary. Last updated: April 2026.