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, April 20, 2026
Transplant Outdoors Monday, June 29, 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 1A
Other Plants for Zone 1A
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Growing Collard Green in USDA Zone 1A
Collard Green (Brassica oleracea) 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, April 20, 2026, then transplant outdoors around Monday, June 29, 2026.
Expect to harvest your Collard Green approximately 168 days after planting.