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When to Plant Radicchio 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, May 13, 2026
Transplant Outdoors Wednesday, May 27, 2026

Pro Tip: Start Radicchio seeds indoors 4 weeks before your last frost date for best results.

🌿 Plant Details

Scientific Name Cichorium intybus
Days to Maturity 80 days
Sun Requirements Full Sun

Cities in Zone 1B

Other Plants for Zone 1B

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Growing Radicchio in USDA Zone 1B

Radicchio (Cichorium intybus) 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 Radicchio seeds indoors around Wednesday, May 13, 2026, then transplant outdoors around Wednesday, May 27, 2026.

Expect to harvest your Radicchio approximately 80 days after planting.