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When to Plant Bachelor Button in Copper Harbor, Michigan (49918)

Location

Copper Harbor, Michigan

ZIP Code

49918

USDA Zone

6a

Last Frost

Monday, April 20, 2026

๐Ÿ“… Planting Calendar

Direct Sow Outdoors Monday, April 6, 2026

Pro Tip: Sow Bachelor Button directly outdoors 2 weeks before your last frost date.

๐ŸŒฟ Plant Details

Scientific Name Centaurea cyanus
Days to Maturity 60 days
Mature Height 12-30"
Spread 9"

โ˜€๏ธ Growing Requirements

โ˜€๏ธ

Sun

Full Sun (6-8 hours)

๐Ÿ’ง

Water

Low to Moderate

โ†”๏ธ

Spacing

9" apart

๐ŸŒฑ

Planting Depth

0.25" deep

Seeds typically germinate in 7-14 days

Ready to Plant Bachelor Button in Copper Harbor?

Get your seeds now so they're ready by Monday, April 6, 2026.

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๐Ÿค Good Companions

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Growing Bachelor Button in Zone 6a

Bachelor Button (Centaurea cyanus) is a popular garden vegetable. In Copper Harbor, Michigan, which is in USDA Hardiness Zone 6a, you should direct sow seeds around Monday, April 6, 2026.

Your average last frost date is Monday, April 20, 2026. Bachelor Button grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.