When to Plant Brussels Sprout in Pasadena, California (91105)

Location

Pasadena, California

ZIP Code

91105

USDA Zone

10a

Last Frost

Sunday, January 25, 2026

📅 Planting Calendar

Start Seeds Indoors Sunday, November 2, 2025

Transplant Outdoors Sunday, January 25, 2026

Pro Tip: Start Brussels Sprout seeds indoors 12 weeks before your last frost date, then transplant outdoors around Sunday, January 25, 2026.

🌿 Plant Details

Scientific Name Brassica oleracea var. gemmifera

Days to Maturity 84 days

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

Seeds typically germinate in 1-7 days

Ready to Plant Brussels Sprout in Pasadena?

Get your seeds now so they're ready by Sunday, November 2, 2025.

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Growing Brussels Sprout in Zone 10a

Brussels Sprout (Brassica oleracea var. gemmifera) is a popular garden vegetable. In Pasadena, California, which is in USDA Hardiness Zone 10a, you should start seeds indoors around Sunday, November 2, 2025.

Your average last frost date is Sunday, January 25, 2026. Plan to transplant your Brussels Sprout seedlings outdoors around Sunday, January 25, 2026, about 0 weeks after your last frost date.