When to Plant Lemon Balm in Houston, Texas (77081)

Location

Houston, Texas

ZIP Code

77081

USDA Zone

Last Frost

Tuesday, February 10, 2026

📅 Planting Calendar

Start Seeds Indoors Tuesday, December 30, 2025

Transplant Outdoors Tuesday, February 24, 2026

Pro Tip: Start Lemon Balm seeds indoors 6 weeks before your last frost date, then transplant outdoors around Tuesday, February 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 Houston?

Get your seeds now so they're ready by Tuesday, December 30, 2025.

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Growing Lemon Balm in Zone 9b

Lemon Balm (Melissa officinalis) is a popular garden vegetable. In Houston, Texas, which is in USDA Hardiness Zone 9b, you should start seeds indoors around Tuesday, December 30, 2025.

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