When to Plant Lemon Balm in New Portland, Maine (04954)

Location

New Portland, Maine

ZIP Code

04954

USDA Zone

Last Frost

Sunday, May 10, 2026

📅 Planting Calendar

Start Seeds Indoors Sunday, March 29, 2026

Transplant Outdoors Sunday, May 24, 2026

Pro Tip: Start Lemon Balm seeds indoors 6 weeks before your last frost date, then transplant outdoors around Sunday, May 24, 2026.

🌿 Plant Details

Scientific Name Melissa officinalis

Days to Maturity 70 days

Mature Height 18-36"

Spread 24"

Type Spreading

Fruit Size N/A

☀️ Growing Requirements

☀️

Sun

Partial Shade to Full Sun

💧

Water

Regular (keep moist)

↔️

Spacing

18" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 10-14 days

Ready to Plant Lemon Balm in New Portland?

Get your seeds now so they're ready by Sunday, March 29, 2026.

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Growing Lemon Balm in Zone 5a

Lemon Balm (Melissa officinalis) is a popular garden vegetable. In New Portland, Maine, which is in USDA Hardiness Zone 5a, you should start seeds indoors around Sunday, March 29, 2026.

Your average last frost date is Sunday, May 10, 2026. Plan to transplant your Lemon Balm seedlings outdoors around Sunday, May 24, 2026, about 2 weeks after your last frost date.