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When to Plant Spaghetti Squash in York County, ME

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

York County, Maine is in USDA Zone 5b. The average last spring frost is May 7 and the first fall frost is October 8, giving you a growing season of approximately 154 days.

At an elevation of 794 feet, York County receives approximately 47.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83ยฐF, so choose short-season varieties of Spaghetti Squash to ensure they mature before fall.

York County, ME (Zone 5b) Moderate season
154 days
Last Spring Frost May 7
154 growing days
First Fall Frost October 8

York County Soil Profile

Soil Type

Silt Loam

Soil pH

5-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (25 days to spare)
Start indoors: Mar 25 Transplant: May 13 🍅 Harvest: Aug 12 – Sep 9
Recommended (50%) ✓ Fits season (21 days to spare)
Start indoors: Apr 2 Transplant: May 21 🍅 Harvest: Aug 20 – Sep 17
Safe Start (90%) ✓ Fits season (29 days to spare)
Start indoors: Apr 14 Transplant: Jun 2 🍅 Harvest: Sep 1 – Sep 29

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
1.3″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Spaghetti Squash needs ~1,133 GDD — county provides 1,886 GDD Excellent fit

Spaghetti Squash Planting Timeline โ€” York County, ME

Spaghetti Squash Planting Calendar

Activity When Date Range
Start Indoors April 2 Apr 2 โ€“ Apr 16
Transplant Outdoors May 21 May 21 โ€“ Jun 4
Direct Sow May 14 May 14 โ€“ Jun 4
Harvest August 20 Aug 20 โ€“ Sep 17

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
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 5b

Growing Season

154 days

Growing Tips for York 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 York County, ME?

York County is in Zone 5b with an average last frost of May 7. Plan your Spaghetti Squash planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is York County, ME?

York County, Maine is in USDA Hardiness Zone 5b. The average last spring frost is May 7 and first fall frost is October 8.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help York 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 York County, ME. Local conditions may vary. Last updated: April 2026.