When to plant bitter melon in South Dakota
South Dakota spans USDA zones 4a–5b, so the right time to plant bitter melon shifts by weeks across the state. The window to transplant seedlings outdoors runs from about May 10 in Sioux Falls to May 26 in Spearfish — below are local dates for 13 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Transplant out |
|---|---|---|---|---|
| Sioux Falls | 5a | April 26 | October 13 | May 10 – May 17 |
| Rapid City | 5b | May 3 | October 8 | May 17 – May 24 |
| Aberdeen | 4a | May 8 | September 29 | May 22 – May 29 |
| Brookings | 4b | May 6 | October 1 | May 20 – May 27 |
| Watertown | 4b | May 7 | September 30 | May 21 – May 28 |
| Mitchell | 5a | May 2 | October 6 | May 16 – May 23 |
| Yankton | 5a | April 27 | October 11 | May 11 – May 18 |
| Huron | 4b | May 6 | October 2 | May 20 – May 27 |
Bitter Melon in South Dakota: FAQ
When can I plant bitter melon in South Dakota?
Across South Dakota, the time to transplant bitter melon spans roughly May 10 in Sioux Falls to May 26 in Spearfish, each following that city's local frost dates.
Does the bitter melon planting date vary across South Dakota?
Yes. South Dakota publishes 13 cities with their own frost dates, so the right bitter melon 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 bitter melon take to grow in South Dakota?
Bitter Melon takes about 55–70 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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