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When to Plant Radicchio in Zone 11B

USDA Zone

11B

Cities Covered

14

Avg Last Frost

Thursday, January 1, 2026

Plant Type

Indoor Start

📅 Planting Calendar for Zone 11B

Start Seeds Indoors Thursday, December 4, 2025
Transplant Outdoors Thursday, December 18, 2025

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 to Partial Shade
Plant Spacing 10" apart

Cities in Zone 11B

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Growing Radicchio in USDA Zone 11B

Radicchio (Cichorium intybus) grows well in USDA Hardiness Zone 11B. This zone includes cities like Long Key, Islamorada, Key West and 11 more.

The average last frost date for Zone 11B is around Thursday, January 1, 2026. For best results, start your Radicchio seeds indoors around Thursday, December 4, 2025, then transplant outdoors around Thursday, December 18, 2025.

Expect to harvest your Radicchio approximately 80 days after planting.