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When to Plant Spaghetti Squash in Haiku, Hawaii (96708)

Location

Haiku, Hawaii

ZIP Code

96708

USDA Zone

12a

Last Frost

Friday, January 1, 2027

📅 Planting Calendar

Start Seeds Indoors Friday, December 4, 2026
Transplant Outdoors Friday, January 15, 2027

Pro Tip: Start Spaghetti Squash seeds indoors 4 weeks before your last frost date for best results.

🌿 Plant Details

Scientific Name Cucurbita pepo
Days to Maturity 90 days

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

Seeds typically germinate in 7-14 days

0

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Growing Spaghetti Squash in Zone 12a

Spaghetti Squash (Cucurbita pepo) is a popular garden vegetable. In Haiku, Hawaii, which is in USDA Hardiness Zone 12a, you should start seeds indoors around Friday, December 4, 2026.

Your average last frost date is Friday, January 1, 2027. Plan to transplant your Spaghetti Squash seedlings outdoors around Friday, January 15, 2027, about 2 weeks after your last frost date.