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When to Plant Lemongrass in Zone 12A

USDA Zone

12A

Cities Covered

25

Avg Last Frost

Thursday, January 1, 2026

Plant Type

Indoor Start

📅 Planting Calendar for Zone 12A

Start Seeds Indoors Thursday, October 23, 2025
Transplant Outdoors Thursday, January 29, 2026

Pro Tip: Start Lemongrass seeds indoors 10 weeks before your last frost date for best results.

🌿 Plant Details

Scientific Name Cymbopogon citratus
Days to Maturity 100 days
Sun Requirements Full Sun (6-8 hours)
Plant Spacing 24" apart

Cities in Zone 12A

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Growing Lemongrass in USDA Zone 12A

Lemongrass (Cymbopogon citratus) grows well in USDA Hardiness Zone 12A. This zone includes cities like Aiea, Anahola, Haiku and 22 more.

The average last frost date for Zone 12A is around Thursday, January 1, 2026. For best results, start your Lemongrass seeds indoors around Thursday, October 23, 2025, then transplant outdoors around Thursday, January 29, 2026.

Expect to harvest your Lemongrass approximately 100 days after planting.