When to Plant Bachelor Button in Union Pier, Michigan (49129)

Location

Union Pier, Michigan

ZIP Code

49129

USDA Zone

Last Frost

Wednesday, April 15, 2026

📅 Planting Calendar

Direct Sow Outdoors Wednesday, April 1, 2026

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

🌿 Plant Details

Scientific Name Centaurea cyanus

Days to Maturity 60 days

Mature Height 12-30"

Spread 9"

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Low to Moderate

↔️

Spacing

9" apart

🌱

Planting Depth

0.25" deep

Seeds typically germinate in 7-14 days

Ready to Plant Bachelor Button in Union Pier?

Get your seeds now so they're ready by Wednesday, April 1, 2026.

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Other Plants for Union Pier

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Growing Bachelor Button in Zone 6b

Bachelor Button (Centaurea cyanus) is a popular garden vegetable. In Union Pier, Michigan, which is in USDA Hardiness Zone 6b, you should direct sow seeds around Wednesday, April 1, 2026.

Your average last frost date is Wednesday, April 15, 2026. Bachelor Button grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.