When to Plant Sweet Alyssum in Bird Island, Minnesota (55310)
Location
Bird Island, Minnesota
ZIP Code
55310
USDA Zone
4b
Last Frost
Tuesday, May 5, 2026
๐ Planting Calendar
Pro Tip: Sow Sweet Alyssum directly outdoors 4 weeks before your last frost date.
๐ฟ Plant Details
โ๏ธ Growing Requirements
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Sun
Full Sun to Partial Shade
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Water
Moderate (1 inch/week)
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Spacing
6" apart
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Planting Depth
0.125" deep
Seeds typically germinate in 5-10 days
Ready to Plant Sweet Alyssum in Bird Island?
Get your seeds now so they're ready by Tuesday, April 7, 2026.
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Other Plants for Bird Island
Growing Sweet Alyssum in Zone 4b
Sweet Alyssum (Lobularia maritima) is a popular garden vegetable. In Bird Island, Minnesota, which is in USDA Hardiness Zone 4b, you should direct sow seeds around Tuesday, April 7, 2026.
Your average last frost date is Tuesday, May 5, 2026. Sweet Alyssum grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.