When to Plant Oregano in Columbia, California (95310)
Location
Columbia, California
ZIP Code
95310
USDA Zone
9a
Last Frost
Saturday, February 20, 2027
📅 Planting Calendar
Start Seeds Indoors Saturday, December 26, 2026
Transplant Outdoors Saturday, March 6, 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 9a
Oregano (Origanum vulgare) is a popular garden vegetable. In Columbia, California, which is in USDA Hardiness Zone 9a, you should start seeds indoors around Saturday, December 26, 2026.
Your average last frost date is Saturday, February 20, 2027. Plan to transplant your Oregano seedlings outdoors around Saturday, March 6, 2027, about 2 weeks after your last frost date.