When to Plant Spaghetti Squash in Grace City, North Dakota (58445)
Location
Grace City, North Dakota
ZIP Code
58445
USDA Zone
4a
Last Frost
Friday, May 15, 2026
📅 Planting Calendar
Start Seeds Indoors Friday, April 17, 2026
Transplant Outdoors Friday, May 29, 2026
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
Other Plants for Grace City
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Growing Spaghetti Squash in Zone 4a
Spaghetti Squash (Cucurbita pepo) is a popular garden vegetable. In Grace City, North Dakota, which is in USDA Hardiness Zone 4a, you should start seeds indoors around Friday, April 17, 2026.
Your average last frost date is Friday, May 15, 2026. Plan to transplant your Spaghetti Squash seedlings outdoors around Friday, May 29, 2026, about 2 weeks after your last frost date.