When to plant cassava in Colorado
Colorado spans USDA zones 5b–7a, so the right time to plant cassava shifts by weeks across the state. The window to transplant seedlings outdoors runs from about April 28 in Grand Junction to July 5 in Edwards — below are local dates for 70 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Transplant out |
|---|---|---|---|---|
| Denver | 6a | May 4 | October 8 | May 18 – June 1 |
| Colorado Springs | 6a | May 3 | October 8 | May 17 – May 31 |
| Aurora | 6a | May 7 | October 8 | May 21 – June 4 |
| Fort Collins | 5b | May 2 | October 7 | May 16 – May 30 |
| Lakewood | 6a | May 3 | October 7 | May 17 – May 31 |
| Thornton | 6a | May 2 | October 11 | May 16 – May 30 |
| Arvada | 6a | May 5 | October 5 | May 19 – June 2 |
| Westminster | 6a | May 2 | October 11 | May 16 – May 30 |
Cassava in Colorado: FAQ
When can I plant cassava in Colorado?
Across Colorado, the time to transplant cassava spans roughly April 28 in Grand Junction to July 5 in Edwards, each following that city's local frost dates.
Does the cassava planting date vary across Colorado?
Yes. Colorado publishes 70 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 Colorado?
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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