When to Plant Bachelor Button in Eugene, Oregon (97408)

Location

Eugene, Oregon

ZIP Code

97408

USDA Zone

Last Frost

Sunday, March 15, 2026

📅 Planting Calendar

Direct Sow Outdoors Sunday, March 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 Eugene?

Get your seeds now so they're ready by Sunday, March 1, 2026.

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Growing Bachelor Button in Zone 8b

Bachelor Button (Centaurea cyanus) is a popular garden vegetable. In Eugene, Oregon, which is in USDA Hardiness Zone 8b, you should direct sow seeds around Sunday, March 1, 2026.

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