When to Plant Cosmos in White Pine, Michigan (49971)
Location
White Pine, Michigan
ZIP Code
49971
USDA Zone
4b
Last Frost
Tuesday, May 5, 2026
๐ Planting Calendar
Pro Tip: Sow Cosmos directly outdoors around your last frost date when soil starts to warm.
๐ฟ Plant Details
โ๏ธ Growing Requirements
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Sun
Full Sun (6-8 hours)
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Water
Low-Moderate
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Spacing
18" apart
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Planting Depth
0.25" deep
Seeds typically germinate in 7-14 days
Ready to Plant Cosmos in White Pine?
Get your seeds now so they're ready by Tuesday, May 5, 2026.
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๐ค Good Companions
Other Plants for White Pine
Growing Cosmos in Zone 4b
Cosmos (Cosmos bipinnatus) is a popular garden vegetable. In White Pine, Michigan, which is in USDA Hardiness Zone 4b, you should direct sow seeds around Tuesday, May 5, 2026.
Your average last frost date is Tuesday, May 5, 2026. Cosmos grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.