When to Plant Spaghetti Squash in Minneapolis, Minnesota (55421)

Location

Minneapolis, Minnesota

ZIP Code

55421

USDA Zone

Last Frost

Sunday, May 10, 2026

📅 Planting Calendar

Start Seeds Indoors Sunday, April 12, 2026

Transplant Outdoors Sunday, May 24, 2026

Pro Tip: Start Spaghetti Squash seeds indoors 4 weeks before your last frost date, then transplant outdoors around Sunday, May 24, 2026.

🌿 Plant Details

Scientific Name Cucurbita pepo

Days to Maturity 90 days

Mature Height 12-18"

Spread 60"

Type Vine

Fruit Size Large (4-8 lbs)

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Regular (1 inch/week)

↔️

Spacing

48" apart

🌱

Planting Depth

1" deep

Seeds typically germinate in 5-10 days

Ready to Plant Spaghetti Squash in Minneapolis?

Get your seeds now so they're ready by Sunday, April 12, 2026.

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🤝 Good Companions

CornBeanMarigoldNasturtium

⚠️ Avoid Planting Near

Potato

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Growing Spaghetti Squash in Zone 5a

Spaghetti Squash (Cucurbita pepo) is a popular garden vegetable. In Minneapolis, Minnesota, which is in USDA Hardiness Zone 5a, you should start seeds indoors around Sunday, April 12, 2026.

Your average last frost date is Sunday, May 10, 2026. Plan to transplant your Spaghetti Squash seedlings outdoors around Sunday, May 24, 2026, about 2 weeks after your last frost date.