🌱 MyLocalPlanting

When to Plant Mustard 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: Mustard can be directly sown outdoors. Plant 6 weeks before your last frost date.

🌿 Plant Details

Scientific Name Brassica juncea
Days to Maturity 56 days
Sun Requirements Full Sun

Cities in Zone 1B

Other Plants for Zone 1B

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Growing Mustard in USDA Zone 1B

Mustard (Brassica juncea) 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. Mustard can be directly sown outdoors around Wednesday, April 29, 2026.

Expect to harvest your Mustard approximately 56 days after planting.