USDA has declared two planting zones for Denver, Colorado- planting zones 5b and 6a, determined by elevation variations from its proximity to the Rocky Mountains.
Zone 6a covers most urban areas with annual minimum temperatures of -10°F to -5°F (-23.3°C to -20.6°C), and zone 5b occurs in surrounding higher-elevation regions like Golden and Morrison, with temperatures of -15°F to -10°F (-26.1°C to -23.3°C).
You can pinpoint your Denver USDA zone using our three tools given below, Zipcode to planting zone tool, Easy interactive map or by using planting zone table.
Denver Planting Zones by ZipCode
Planting zones in Denver Map
Select or type your Denver location in the selection box below, to find its USDA Growing zone. Use the layer button to on/off layers, top right corner button in mapview.
City Name
Denver Area Planting Zone
Planting Zones
Planting Zones
Denver Planting Zones Table
| Denver Location | Planting Zone |
|---|---|
| Loading Denver zones data… | |
No items found matching your search
Try a different search term or clear the search field.
Planting zones in Denver, Colorado
1. Zone 5b
This zone 5b is represented by the darker teal color on our map above, primarily surrounding the Denver metropolitan area. Zone 5b has average annual minimum temperatures ranging from -15°F to -10°F (-26.1°C to -23.3°C). It cover some of the outlying areas and the higher elevation regions near the city.
2. Zone 6a
Zone 6a, shown in the green color on our map, covers the majority of the Denver (Colorado) area. This zone has average annual minimum temperatures ranging from -10°F to -5°F (-23.3°C to -20.6°C). Most Denver zip codes fall within Zone 6a, including downtown Denver (80201, 80202, 80203) and surrounding neighborhoods such as Capitol Hill (80203), Five Points (80205), and Park Hill (80207).
The consistency of Zone 6a across Denver’s various neighborhoods suggests uniform growing conditions throughout the city. Gardeners and farmers in Denver should select plants that are well-suited to Zone 6a conditions to ensure the best chances of success in their cultivation efforts.