When to Plant Butternut Squash in Bancroft, Wisconsin (54921)
Location
Bancroft, Wisconsin
ZIP Code
54921
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 Butternut Squash seeds indoors 4 weeks before your last frost date for best results.
🌿 Plant Details
Scientific Name Cucurbita moschata
Days to Maturity 100 days
☀️ Growing Requirements
☀️
Sun
Full Sun
💧
Water
Regular
Seeds typically germinate in 7-14 days
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Growing Butternut Squash in Zone 4b
Butternut Squash (Cucurbita moschata) is a popular garden vegetable. In Bancroft, Wisconsin, 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 Butternut Squash seedlings outdoors around Tuesday, May 19, 2026, about 2 weeks after your last frost date.