When to plant carrot in Colorado
Colorado spans USDA zones 5b–7a, so the right time to plant carrot shifts by weeks across the state. The window to sow seed directly outdoors runs from about March 24 in Grand Junction to May 31 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 | April 13 – May 25 |
| Colorado Springs | 6a | May 3 | October 8 | April 12 – May 24 |
| Aurora | 6a | May 7 | October 8 | April 16 – May 28 |
| Fort Collins | 5b | May 2 | October 7 | April 11 – May 23 |
| Lakewood | 6a | May 3 | October 7 | April 12 – May 24 |
| Thornton | 6a | May 2 | October 11 | April 11 – May 23 |
| Arvada | 6a | May 5 | October 5 | April 14 – May 26 |
| Westminster | 6a | May 2 | October 11 | April 11 – May 23 |
Carrot in Colorado: FAQ
When can I plant carrot in Colorado?
Across Colorado, the time to direct-sow carrot spans roughly March 24 in Grand Junction to May 31 in Edwards, each following that city's local frost dates.
Does the carrot planting date vary across Colorado?
Yes. Colorado publishes 70 cities with their own frost dates, so the right carrot 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 carrot take to grow in Colorado?
Carrot takes about 60–80 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.