When to Plant Zinnia in California
State
California
Cities Covered
1234
USDA Zones
10a, 10b, 11a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
Plant Type
Direct Sow
📅 Planting Calendar for California
Based on Los Angeles (Zone 10b). Dates may vary by city.
Note: California spans multiple zones (10a, 10b, 11a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b). Select your city below for more precise dates.
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Growing Zinnia in California
Zinnia (Zinnia elegans) is a popular garden vegetable in California. The state spans USDA Hardiness Zones 10a, 10b, 11a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, so planting dates can vary significantly depending on your location.
In most areas of California, you can direct sow Zinnia outdoors around Thursday, January 22, 2026.
For the most accurate planting dates, enter your ZIP code on our homepage or select your city from the list above.