When to Plant Lemon Balm in Cumberland Center, Maine (04021)
Location
Cumberland Center, Maine
ZIP Code
04021
USDA Zone
5b
Last Frost
Saturday, April 25, 2026
📅 Planting Calendar
Start Seeds Indoors Saturday, March 14, 2026
Transplant Outdoors Saturday, May 9, 2026
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 5b
Lemon Balm (Melissa officinalis) is a popular garden vegetable. In Cumberland Center, Maine, which is in USDA Hardiness Zone 5b, you should start seeds indoors around Saturday, March 14, 2026.
Your average last frost date is Saturday, April 25, 2026. Plan to transplant your Lemon Balm seedlings outdoors around Saturday, May 9, 2026, about 2 weeks after your last frost date.