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When to Plant Lemon Balm in Zone 12A

USDA Zone

12A

Cities Covered

25

Avg Last Frost

Friday, January 1, 2027

Plant Type

Indoor Start

📅 Planting Calendar for Zone 12A

Start Seeds Indoors Friday, November 20, 2026
Transplant Outdoors Friday, January 15, 2027

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

🌿 Plant Details

Scientific Name Melissa officinalis
Days to Maturity 70 days
Sun Requirements Full Sun

Cities in Zone 12A

Other Plants for Zone 12A

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Growing Lemon Balm in USDA Zone 12A

Lemon Balm (Melissa officinalis) 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 Friday, January 1, 2027. For best results, start your Lemon Balm seeds indoors around Friday, November 20, 2026, then transplant outdoors around Friday, January 15, 2027.

Expect to harvest your Lemon Balm approximately 70 days after planting.