When to plant pole bean in Colorado
Colorado spans USDA zones 5b–7a, so the right time to plant pole bean shifts by weeks across the state. The window to sow seed directly outdoors runs from about April 21 in Grand Junction to June 28 in Edwards — below are local dates for 70 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Direct sow |
|---|---|---|---|---|
| Denver | 6a | May 4 | October 8 | May 11 – June 1 |
| Colorado Springs | 6a | May 3 | October 8 | May 10 – May 31 |
| Aurora | 6a | May 7 | October 8 | May 14 – June 4 |
| Fort Collins | 5b | May 2 | October 7 | May 9 – May 30 |
| Lakewood | 6a | May 3 | October 7 | May 10 – May 31 |
| Thornton | 6a | May 2 | October 11 | May 9 – May 30 |
| Arvada | 6a | May 5 | October 5 | May 12 – June 2 |
| Westminster | 6a | May 2 | October 11 | May 9 – May 30 |
Pole Bean in Colorado: FAQ
When can I plant pole bean in Colorado?
Across Colorado, the time to direct-sow pole bean spans roughly April 21 in Grand Junction to June 28 in Edwards, each following that city's local frost dates.
Does the pole bean planting date vary across Colorado?
Yes. Colorado publishes 70 cities with their own frost dates, so the right pole bean 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 pole bean take to grow in Colorado?
Pole Bean takes about 60–75 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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