When to Plant Oregano in Whittier, California (90603)

Location

Whittier, California

ZIP Code

90603

USDA Zone

10b

Last Frost

Thursday, January 15, 2026

📅 Planting Calendar

Start Seeds Indoors Thursday, November 20, 2025

Transplant Outdoors Thursday, January 29, 2026

Pro Tip: Start Oregano seeds indoors 8 weeks before your last frost date, then transplant outdoors around Thursday, January 29, 2026.

🌿 Plant Details

Scientific Name Origanum vulgare

Days to Maturity 80 days

Mature Height 12-24"

Spread 18"

Type Spreading

Fruit Size N/A

☀️ Growing Requirements

☀️

Sun

Full Sun (6+ hours)

💧

Water

Low to Moderate

↔️

Spacing

12" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 7-14 days

Ready to Plant Oregano in Whittier?

Get your seeds now so they're ready by Thursday, November 20, 2025.

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Growing Oregano in Zone 10b

Oregano (Origanum vulgare) is a popular garden vegetable. In Whittier, California, which is in USDA Hardiness Zone 10b, you should start seeds indoors around Thursday, November 20, 2025.

Your average last frost date is Thursday, January 15, 2026. Plan to transplant your Oregano seedlings outdoors around Thursday, January 29, 2026, about 2 weeks after your last frost date.