When to Plant Acorn Squash in Colorado Springs, Colorado (80921)
Location
Colorado Springs, Colorado
ZIP Code
80921
USDA Zone
5b
Last Frost
Saturday, April 25, 2026
📅 Planting Calendar
Start Seeds Indoors Saturday, March 28, 2026
Transplant Outdoors Saturday, May 9, 2026
Pro Tip: Start Acorn Squash seeds indoors 4 weeks before your last frost date for best results.
🌿 Plant Details
Scientific Name Cucurbita pepo
Days to Maturity 85 days
☀️ Growing Requirements
☀️
Sun
Full Sun
💧
Water
Regular
Seeds typically germinate in 7-14 days
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Growing Acorn Squash in Zone 5b
Acorn Squash (Cucurbita pepo) is a popular garden vegetable. In Colorado Springs, Colorado, which is in USDA Hardiness Zone 5b, you should start seeds indoors around Saturday, March 28, 2026.
Your average last frost date is Saturday, April 25, 2026. Plan to transplant your Acorn Squash seedlings outdoors around Saturday, May 9, 2026, about 2 weeks after your last frost date.