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When to Plant Brussels Sprout 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, October 9, 2025
Transplant Outdoors Thursday, January 1, 2026

Pro Tip: Start Brussels Sprout seeds indoors 12 weeks before your last frost date for best results.

🌿 Plant Details

Scientific Name Brassica oleracea var. gemmifera
Days to Maturity 84 days
Sun Requirements Full Sun

Cities in Zone 11B

Other Plants for Zone 11B

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Growing Brussels Sprout in USDA Zone 11B

Brussels Sprout (Brassica oleracea var. gemmifera) 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 Brussels Sprout seeds indoors around Thursday, October 9, 2025, then transplant outdoors around Thursday, January 1, 2026.

Expect to harvest your Brussels Sprout approximately 84 days after planting.