When to Plant Zinnia in District of Columbia
State
District of Columbia
Cities Covered
2
USDA Zones
7a, 7b, 8a
Plant Type
Direct Sow
📅 Planting Calendar for District of Columbia
Based on Washington (Zone 8a). Dates may vary by city.
Direct Sow Outdoors Friday, March 27, 2026
Note: District of Columbia spans multiple zones (7a, 7b, 8a). Select your city below for more precise dates.
🌿 Plant Details
Scientific Name Zinnia elegans
Days to Maturity 60 days
Sun Requirements Full Sun (6-8 hours)
Plant Spacing 12" apart
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Growing Zinnia in District of Columbia
Zinnia (Zinnia elegans) is a popular garden vegetable in District of Columbia. The state spans USDA Hardiness Zones 7a, 7b, 8a, so planting dates can vary significantly depending on your location.
In most areas of District of Columbia, you can direct sow Zinnia outdoors around Friday, March 27, 2026.
For the most accurate planting dates, enter your ZIP code on our homepage or select your city from the list above.