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When to Plant Celosia in Zone 11A

USDA Zone

11A

Cities Covered

34

Avg Last Frost

Friday, January 1, 2027

Plant Type

Indoor Start

📅 Planting Calendar for Zone 11A

Start Seeds Indoors Friday, November 20, 2026
Transplant Outdoors Friday, January 8, 2027

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

🤝 Companion Plants for Celosia

Good Companions

MarigoldZinniaBasil
See the full companion planting guide for Celosia →

Cities in Zone 11A

Other Plants for Zone 11A

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Growing Celosia in USDA Zone 11A

Celosia (Celosia argentea) grows well in USDA Hardiness Zone 11A. This zone includes cities like Hermosa Beach, Malibu, Venice and 31 more.

The average last frost date for Zone 11A is around Friday, January 1, 2027. For best results, start your Celosia seeds indoors around Friday, November 20, 2026, then transplant outdoors around Friday, January 8, 2027.

Expect to harvest your Celosia approximately 75 days after planting.