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When to Plant Lavender in Washington, District of Columbia (20213)

Location

Washington, District of Columbia

ZIP Code

20213

USDA Zone

8a

Last Frost

Friday, March 20, 2026

📅 Planting Calendar

Start Seeds Indoors Friday, January 9, 2026
Transplant Outdoors Friday, April 3, 2026

Pro Tip: Start Lavender seeds indoors 10 weeks before your last frost date for best results.

🌿 Plant Details

Scientific Name Lavandula angustifolia
Days to Maturity 90 days

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

Seeds typically germinate in 7-14 days

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Other Plants for Washington

Growing Lavender in Zone 8a

Lavender (Lavandula angustifolia) is a popular garden vegetable. In Washington, District of Columbia, which is in USDA Hardiness Zone 8a, you should start seeds indoors around Friday, January 9, 2026.

Your average last frost date is Friday, March 20, 2026. Plan to transplant your Lavender seedlings outdoors around Friday, April 3, 2026, about 2 weeks after your last frost date.