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When to Plant Broccoli in Zone 1B

USDA Zone

1B

Cities Covered

11

Avg Last Frost

Wednesday, June 10, 2026

Plant Type

Direct Sow

📅 Planting Calendar for Zone 1B

Direct Sow Outdoors Wednesday, April 29, 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
Sun Requirements Full Sun (6 hours)
Plant Spacing 18" apart

Cities in Zone 1B

Other Plants for Zone 1B

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Growing Broccoli in USDA Zone 1B

Broccoli (Brassica oleracea) grows well in USDA Hardiness Zone 1B. This zone includes cities like Arctic Village, Bettles Field, Chicken and 8 more.

The average last frost date for Zone 1B is around Wednesday, June 10, 2026. Broccoli can be directly sown outdoors around Wednesday, April 29, 2026.

Expect to harvest your Broccoli approximately 60 days after planting.