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When to Plant Cauliflower in Hagar Shores, Michigan (49039)

Location

Hagar Shores, Michigan

ZIP Code

49039

USDA Zone

6b

Last Frost

Wednesday, April 15, 2026

📅 Planting Calendar

Direct Sow Outdoors Wednesday, March 4, 2026

Pro Tip: Cauliflower can be directly sown outdoors. Plant 6 weeks before your last frost date.

🌿 Plant Details

Scientific Name Brassica oleracea
Days to Maturity 75 days
Mature Height 18-24"
Spread 24"
Type Head
Fruit Size Medium (6-8 inch head)

☀️ Growing Requirements

☀️

Sun

Full Sun (6 hours)

💧

Water

Regular (1-1.5 inches/week)

↔️

Spacing

18" apart

🌱

Planting Depth

0.5" deep

Seeds typically germinate in 4-10 days

🤝 Good Companions

BeetCeleryBeanOnion

⚠️ Avoid Planting Near

StrawberryTomato

Other Plants for Hagar Shores

Growing Cauliflower in Zone 6b

Cauliflower (Brassica oleracea) is a popular garden vegetable. In Hagar Shores, Michigan, which is in USDA Hardiness Zone 6b, you should direct sow seeds around Wednesday, March 4, 2026.

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