my LocalPlanting

When to Plant Leek 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 1, 2026
Transplant Outdoors Wednesday, June 24, 2026

Pro Tip: Start Leek seeds indoors 10 weeks before your last frost date for best results.

🌿 Plant Details

Scientific Name Allium ampeloprasum
Days to Maturity 120 days
Sun Requirements Full Sun

Cities in Zone 1B

Other Plants for Zone 1B

Browse Other Zones

Growing Leek in USDA Zone 1B

Leek (Allium ampeloprasum) 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 Leek seeds indoors around Wednesday, April 1, 2026, then transplant outdoors around Wednesday, June 24, 2026.

Expect to harvest your Leek approximately 120 days after planting.