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When to Plant Zinnia in Zone 11B

USDA Zone

11B

Cities Covered

14

Avg Last Frost

Thursday, January 1, 2026

Plant Type

Direct Sow

📅 Planting Calendar for Zone 11B

Direct Sow Outdoors Thursday, January 8, 2026

Pro Tip: Zinnia can be directly sown outdoors. Plant -1 weeks before your last frost date.

🌿 Plant Details

Scientific Name Zinnia elegans
Days to Maturity 60 days
Sun Requirements Full Sun (6-8 hours)
Plant Spacing 12" apart

Cities in Zone 11B

Other Plants for Zone 11B

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Growing Zinnia in USDA Zone 11B

Zinnia (Zinnia elegans) 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. Zinnia can be directly sown outdoors around Thursday, January 8, 2026.

Expect to harvest your Zinnia approximately 60 days after planting.