When to Plant Mustard in Isabella, Minnesota (55607)
Location
Isabella, Minnesota
ZIP Code
55607
USDA Zone
3b
Last Frost
Wednesday, May 20, 2026
📅 Planting Calendar
Direct Sow Outdoors Wednesday, April 8, 2026
Pro Tip: Sow Mustard directly outdoors 6 weeks before your last frost date.
🌿 Plant Details
Scientific Name Brassica juncea
Days to Maturity 56 days
☀️ Growing Requirements
☀️
Sun
Full Sun
💧
Water
Regular
Seeds typically germinate in 1-7 days
Ready to Plant Mustard in Isabella?
Get your seeds now so they're ready by Wednesday, April 8, 2026.
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🤝 Good Companions
CabbageCauliflowerRadishBrussel SproutTurnip
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Growing Mustard in Zone 3b
Mustard (Brassica juncea) is a popular garden vegetable. In Isabella, 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. Mustard grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.