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When to Plant Celosia 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 8, 2026

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

🌿 Plant Details

Scientific Name Celosia argentea
Days to Maturity 75 days
Sun Requirements Full Sun (6-8 hours)
Plant Spacing 9" apart

Cities in Zone 13A

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Growing Celosia in USDA Zone 13A

Celosia (Celosia argentea) 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 Celosia seeds indoors around Thursday, November 20, 2025, then transplant outdoors around Thursday, January 8, 2026.

Expect to harvest your Celosia approximately 75 days after planting.