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When to Plant Collard Green in Zone 1A

USDA Zone

1A

Cities Covered

5

Avg Last Frost

Monday, June 15, 2026

Plant Type

Indoor Start

📅 Planting Calendar for Zone 1A

Start Seeds Indoors Monday, May 4, 2026
Transplant Outdoors Monday, June 15, 2026

Pro Tip: Start Collard Green seeds indoors 6 weeks before your last frost date for best results.

🌿 Plant Details

Scientific Name Brassica oleracea var. viridis
Days to Maturity 60 days
Sun Requirements Full Sun (6+ hours)
Plant Spacing 18" apart

Cities in Zone 1A

Other Plants for Zone 1A

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Growing Collard Green in USDA Zone 1A

Collard Green (Brassica oleracea var. viridis) grows well in USDA Hardiness Zone 1A. This zone includes cities like Allakaket, Beaver, Circle and 2 more.

The average last frost date for Zone 1A is around Monday, June 15, 2026. For best results, start your Collard Green seeds indoors around Monday, May 4, 2026, then transplant outdoors around Monday, June 15, 2026.

Expect to harvest your Collard Green approximately 60 days after planting.