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When to Plant Broccoli in Zone 13A

USDA Zone

13A

Cities Covered

2

Avg Last Frost

Thursday, January 1, 2026

Plant Type

Indoor Start

📅 Planting Calendar for Zone 13A

Start Seeds Indoors Thursday, November 20, 2025
Transplant Outdoors Thursday, January 1, 2026

Pro Tip: Start Broccoli seeds indoors 6 weeks before your last frost date for best results.

🌿 Plant Details

Scientific Name Brassica oleracea var. italica
Days to Maturity 60 days
Sun Requirements Full Sun (6 hours)
Plant Spacing 18" apart

Cities in Zone 13A

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Growing Broccoli in USDA Zone 13A

Broccoli (Brassica oleracea var. italica) grows well in USDA Hardiness Zone 13A. This zone includes cities like Keauhou, M C B H Kaneohe Bay.

The average last frost date for Zone 13A is around Thursday, January 1, 2026. For best results, start your Broccoli seeds indoors around Thursday, November 20, 2025, then transplant outdoors around Thursday, January 1, 2026.

Expect to harvest your Broccoli approximately 60 days after planting.