When to Plant Lavender in Saint Louis, Missouri (63163)

Location

Saint Louis, Missouri

ZIP Code

63163

USDA Zone

Last Frost

Friday, April 10, 2026

📅 Planting Calendar

Start Seeds Indoors Friday, January 30, 2026

Transplant Outdoors Friday, April 24, 2026

Pro Tip: Start Lavender seeds indoors 10 weeks before your last frost date, then transplant outdoors around Friday, April 24, 2026.

🌿 Plant Details

Scientific Name Lavandula angustifolia

Days to Maturity 90 days

Mature Height 18-36"

Spread 24"

Type Shrub

Fruit Size N/A

☀️ Growing Requirements

☀️

Sun

Full Sun (6+ hours)

💧

Water

Low (drought tolerant once established)

↔️

Spacing

24" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 14-21 days

Ready to Plant Lavender in Saint Louis?

Get your seeds now so they're ready by Friday, January 30, 2026.

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Growing Lavender in Zone 7a

Lavender (Lavandula angustifolia) is a popular garden vegetable. In Saint Louis, Missouri, which is in USDA Hardiness Zone 7a, you should start seeds indoors around Friday, January 30, 2026.

Your average last frost date is Friday, April 10, 2026. Plan to transplant your Lavender seedlings outdoors around Friday, April 24, 2026, about 2 weeks after your last frost date.