When to Plant Lemon Balm in Park River, North Dakota (58270)

Location

Park River, North Dakota

ZIP Code

58270

USDA Zone

Last Frost

Friday, May 15, 2026

📅 Planting Calendar

Start Seeds Indoors Friday, April 3, 2026

Transplant Outdoors Friday, May 29, 2026

Pro Tip: Start Lemon Balm seeds indoors 6 weeks before your last frost date, then transplant outdoors around Friday, May 29, 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 Park River?

Get your seeds now so they're ready by Friday, April 3, 2026.

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Growing Lemon Balm in Zone 4a

Lemon Balm (Melissa officinalis) is a popular garden vegetable. In Park River, North Dakota, which is in USDA Hardiness Zone 4a, you should start seeds indoors around Friday, April 3, 2026.

Your average last frost date is Friday, May 15, 2026. Plan to transplant your Lemon Balm seedlings outdoors around Friday, May 29, 2026, about 2 weeks after your last frost date.