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When to Plant Collard Green in Oakland, California (94607)

Location

Oakland, California

ZIP Code

94607

USDA Zone

10b

Last Frost

Friday, January 15, 2027

📅 Planting Calendar

Start Seeds Indoors Friday, November 20, 2026
Transplant Outdoors Friday, January 29, 2027

Pro Tip: Start Collard Green seeds indoors 8 weeks before your last frost date for best results.

🌿 Plant Details

Scientific Name Brassica oleracea
Days to Maturity 168 days

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

Seeds typically germinate in 8-21 days

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Other Plants for Oakland

Growing Collard Green in Zone 10b

Collard Green (Brassica oleracea) is a popular garden vegetable. In Oakland, California, which is in USDA Hardiness Zone 10b, you should start seeds indoors around Friday, November 20, 2026.

Your average last frost date is Friday, January 15, 2027. Plan to transplant your Collard Green seedlings outdoors around Friday, January 29, 2027, about 2 weeks after your last frost date.