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When to plant Spaghetti Squash in Moffat County, CO

In Moffat County, Spaghetti Squash is a single-season spring crop — there's no second fall window. Plant June 14–July 5 for an 85–100-day harvest, finishing well before the September 14 first frost.

When to Plant Spaghetti Squash in Moffat County, CO

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

Moffat County, Colorado is in USDA Zone 5b. The average last spring frost is June 7 and the first fall frost is September 14, giving you a growing season of approximately 99 days.

At an elevation of 6,597 feet, Moffat County receives approximately 12.3 inches of rainfall annually with predominantly loam soil. Summer highs average 86°F, providing good warmth for Spaghetti Squash during the growing season. With low rainfall, drip irrigation is essential for growing Spaghetti Squash successfully. Mulch heavily to conserve soil moisture.

Moffat County, CO (Zone 5b) Very short season
99 days
Last Spring Frost June 7
99 growing days
First Fall Frost September 14

Moffat County Soil Profile

Soil Type

Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Spaghetti Squash Planting Timeline — Moffat County, CO

Spaghetti Squash Planting Calendar

Activity When Date Range
Start Indoors May 3 May 3 – May 17
Transplant Outdoors June 21 Jun 21 – Jul 5
Direct Sow June 14 Jun 14 – Jul 5
Harvest September 20 Sep 20 – Oct 18

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

85–100 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 5b

📆 Growing Season

99 days in Moffat County

Growing Tips for Moffat 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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Spaghetti Squash in Moffat County, CO?

Moffat County is in Zone 5b with an average last frost of June 7. Plan your Spaghetti Squash planting based on this frost date — see the calendar above for exact timing.

What planting zone is Moffat County, CO?

Moffat County, Colorado is in USDA Hardiness Zone 5b. The average last spring frost is June 7 and first fall frost is September 14.

When should I plant Spaghetti Squash in Moffat County, CO?

In Moffat County, CO, plant Spaghetti Squash after the last frost (around June 7) and before the first frost (around September 14). Best results when soil holds above 50°F.

What growing zone is Moffat County, CO for Spaghetti Squash?

Moffat County sits in USDA Zone 5b. Spaghetti Squash grows reliably in zones 3a through 11b, so it's a good fit here.

Can Spaghetti Squash grow in Moffat County's climate?

Yes — Spaghetti Squash grows well in Moffat County's temperate climate. Moffat County averages a 99-day frost-free season, with last frost around June 7 and first frost around September 14.

🌱

Your Moffat County Garden Planner — Free

A 22-page printable planner built for Moffat 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 Moffat County, CO. Local conditions may vary. Last updated: June 2026.

Sources & credits

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