When to plant lima bean in Colorado
Colorado spans USDA zones 5b–7a, so the right time to plant lima 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 |
Lima Bean in Colorado: FAQ
When can I plant lima bean in Colorado?
Across Colorado, the time to direct-sow lima bean spans roughly April 21 in Grand Junction to June 28 in Edwards, each following that city's local frost dates.
Does the lima bean planting date vary across Colorado?
Yes. Colorado publishes 70 cities with their own frost dates, so the right lima 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 lima bean take to grow in Colorado?
Lima Bean takes about 65–90 days to reach harvest once planted — check that this fits inside your city's frost-free season on its place page.
Never miss a window in your area
An email when it’s time to start seeds, transplant, and sow — timed to your frost dates. Double opt-in, one-click unsubscribe, no spam.