When to plant cassava in Wisconsin
Wisconsin spans USDA zones 4b–6a, so the right time to plant cassava shifts by weeks across the state. The window to transplant seedlings outdoors runs from about May 3 in Pleasant Prairie to May 25 in River Falls — below are local dates for 97 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Transplant out |
|---|---|---|---|---|
| Milwaukee | 6a | April 26 | October 18 | May 10 – May 24 |
| Madison | 5a | May 1 | October 9 | May 15 – May 29 |
| Green Bay | 5b | May 7 | October 9 | May 21 – June 4 |
| Kenosha | 5b | April 28 | October 19 | May 12 – May 26 |
| Racine | 6a | April 20 | October 24 | May 4 – May 18 |
| Appleton | 5b | May 4 | October 6 | May 18 – June 1 |
| Waukesha | 5b | May 1 | October 13 | May 15 – May 29 |
| Eau Claire | 4b | April 24 | October 14 | May 8 – May 22 |
Cassava in Wisconsin: FAQ
When can I plant cassava in Wisconsin?
Across Wisconsin, the time to transplant cassava spans roughly May 3 in Pleasant Prairie to May 25 in River Falls, each following that city's local frost dates.
Does the cassava planting date vary across Wisconsin?
Yes. Wisconsin publishes 97 cities with their own frost dates, so the right cassava 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 cassava take to grow in Wisconsin?
Cassava takes about 240–300 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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