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When to Plant Collard Green in Zone 1B

USDA Zone

1B

Cities Covered

11

Avg Last Frost

Wednesday, June 10, 2026

Plant Type

Indoor Start

📅 Planting Calendar for Zone 1B

Start Seeds Indoors Wednesday, April 15, 2026
Transplant Outdoors Wednesday, June 24, 2026

Pro Tip: Start Collard Green seeds indoors 8 weeks before your last frost date for best results.

🌿 Plant Details

Scientific Name Brassica oleracea
Days to Maturity 168 days
Sun Requirements Full Sun

Cities in Zone 1B

Other Plants for Zone 1B

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Growing Collard Green in USDA Zone 1B

Collard Green (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. For best results, start your Collard Green seeds indoors around Wednesday, April 15, 2026, then transplant outdoors around Wednesday, June 24, 2026.

Expect to harvest your Collard Green approximately 168 days after planting.