When to Plant Oregano in Chula Vista, California (91921)
Location
Chula Vista, California
ZIP Code
91921
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 Oregano seeds indoors 8 weeks before your last frost date for best results.
🌿 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
🤝 Good Companions
PepperTomatoBasil
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Growing Oregano in Zone 10b
Oregano (Origanum vulgare) is a popular garden vegetable. In Chula Vista, 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 Oregano seedlings outdoors around Friday, January 29, 2027, about 2 weeks after your last frost date.