When to Plant Lavender in Honolulu, Hawaii (96849)

Location

Honolulu, Hawaii

ZIP Code

96849

USDA Zone

12b

Last Frost

Thursday, January 1, 2026

📅 Planting Calendar

Start Seeds Indoors Thursday, October 23, 2025

Transplant Outdoors Thursday, January 15, 2026

Pro Tip: Start Lavender seeds indoors 10 weeks before your last frost date, then transplant outdoors around Thursday, January 15, 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 Honolulu?

Get your seeds now so they're ready by Thursday, October 23, 2025.

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Growing Lavender in Zone 12b

Lavender (Lavandula angustifolia) is a popular garden vegetable. In Honolulu, Hawaii, which is in USDA Hardiness Zone 12b, you should start seeds indoors around Thursday, October 23, 2025.

Your average last frost date is Thursday, January 1, 2026. Plan to transplant your Lavender seedlings outdoors around Thursday, January 15, 2026, about 2 weeks after your last frost date.