When to Plant Brussel Sprout in Biwabik, Minnesota (55708)
Location
Biwabik, Minnesota
ZIP Code
55708
USDA Zone
3b
Last Frost
Wednesday, May 20, 2026
📅 Planting Calendar
Direct Sow Outdoors Wednesday, April 8, 2026
Pro Tip: Brussel Sprout can be directly sown outdoors. Plant 6 weeks before your last frost date.
🌿 Plant Details
Scientific Name Brassica oleracea
Days to Maturity 84 days
☀️ Growing Requirements
☀️
Sun
Full Sun
💧
Water
Regular
Seeds typically germinate in 1-7 days
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Growing Brussel Sprout in Zone 3b
Brussel Sprout (Brassica oleracea) is a popular garden vegetable. In Biwabik, Minnesota, which is in USDA Hardiness Zone 3b, you should direct sow seeds around Wednesday, April 8, 2026.
Your average last frost date is Wednesday, May 20, 2026. Brussel Sprout grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.