When to plant sweet potato in District of Columbia
District of Columbia spans USDA zone 8a, so the right time to plant sweet potato shifts by weeks across the state. The window to transplant seedlings outdoors runs from about April 19 in Washington to April 19 in Washington — below are local dates for 1 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Transplant out |
|---|---|---|---|---|
| Washington | 8a | March 29 | November 8 | April 19 – May 3 |
Sweet Potato in District of Columbia: FAQ
When can I plant sweet potato in District of Columbia?
Across District of Columbia, the time to transplant sweet potato spans roughly April 19 in Washington to April 19 in Washington, each following that city's local frost dates.
Does the sweet potato planting date vary across District of Columbia?
Yes. District of Columbia publishes 1 cities with their own frost dates, so the right sweet potato 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 sweet potato take to grow in District of Columbia?
Sweet Potato takes about 90–120 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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