When to plant coriander (seed) in District of Columbia
District of Columbia spans USDA zone 8a, so the right time to plant coriander (seed) shifts by weeks across the state. The window to sow seed directly outdoors runs from about March 15 in Washington to March 15 in Washington — below are local dates for 1 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Direct sow |
|---|---|---|---|---|
| Washington | 8a | March 29 | November 8 | March 15 – April 12 |
Coriander (Seed) in District of Columbia: FAQ
When can I plant coriander (seed) in District of Columbia?
Across District of Columbia, the time to direct-sow coriander (seed) spans roughly March 15 in Washington to March 15 in Washington, each following that city's local frost dates.
Does the coriander (seed) planting date vary across District of Columbia?
Yes. District of Columbia publishes 1 cities with their own frost dates, so the right coriander (seed) planting window shifts by weeks between the warmest and coldest parts of the state — use your city's page for the exact dates.
How long does coriander (seed) take to grow in District of Columbia?
Coriander (Seed) takes about 90–110 days to reach harvest once planted — check that this fits inside your city's frost-free season on its place page.
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