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When to Plant Spaghetti Squash in Cold Spring, Minnesota (56320)

Location

Cold Spring, Minnesota

ZIP Code

56320

USDA Zone

4b

Last Frost

Tuesday, May 5, 2026

📅 Planting Calendar

Start Seeds Indoors Tuesday, April 7, 2026
Transplant Outdoors Tuesday, May 19, 2026

Pro Tip: Start Spaghetti Squash seeds indoors 4 weeks before your last frost date, then transplant outdoors around Tuesday, May 19, 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 Cold Spring?

Get your seeds now so they're ready by Tuesday, April 7, 2026.

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🤝 Good Companions

CornBeanMarigoldNasturtium

⚠️ Avoid Planting Near

Potato

Other Plants for Cold Spring

Growing Spaghetti Squash in Zone 4b

Spaghetti Squash (Cucurbita pepo) is a popular garden vegetable. In Cold Spring, Minnesota, which is in USDA Hardiness Zone 4b, you should start seeds indoors around Tuesday, April 7, 2026.

Your average last frost date is Tuesday, May 5, 2026. Plan to transplant your Spaghetti Squash seedlings outdoors around Tuesday, May 19, 2026, about 2 weeks after your last frost date.