🌱 MyLocalPlanting

When to Plant Broccoli in Boyceville, Wisconsin (54725)

Location

Boyceville, Wisconsin

ZIP Code

54725

USDA Zone

4b

Last Frost

Tuesday, May 5, 2026

📅 Planting Calendar

Direct Sow Outdoors Tuesday, March 24, 2026

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

🌿 Plant Details

Scientific Name Brassica oleracea
Days to Maturity 60 days
Mature Height 18-30"
Spread 18"
Type Head
Fruit Size Medium (4-7 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 4-7 days

🤝 Good Companions

BeetCeleryOnionPotatoDill

⚠️ Avoid Planting Near

TomatoStrawberryPepper

Other Plants for Boyceville

Growing Broccoli in Zone 4b

Broccoli (Brassica oleracea) is a popular garden vegetable. In Boyceville, Wisconsin, which is in USDA Hardiness Zone 4b, you should direct sow seeds around Tuesday, March 24, 2026.

Your average last frost date is Tuesday, May 5, 2026. Broccoli grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.