When to Plant Lemon Balm in Honolulu, Hawaii (96821)
Location
Honolulu, Hawaii
ZIP Code
96821
USDA Zone
12b
Last Frost
Friday, January 1, 2027
📅 Planting Calendar
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
☀️ Growing Requirements
☀️
Sun
Full Sun
💧
Water
Regular
Seeds typically germinate in 7-14 days
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Growing Lemon Balm in Zone 12b
Lemon Balm (Melissa officinalis) is a popular garden vegetable. In Honolulu, Hawaii, which is in USDA Hardiness Zone 12b, you should start seeds indoors around Friday, November 20, 2026.
Your average last frost date is Friday, January 1, 2027. Plan to transplant your Lemon Balm seedlings outdoors around Friday, January 15, 2027, about 2 weeks after your last frost date.