Colorado
State Tree: Blue Spruce
State Arbor Day: Third Friday in April
Volunteer Opportunities in Colorado
Membership Tree Packages that Grow Well in Colorado
Urban Forestry Coordinator
Colorado State Forest Service
Keith Wood
Community Forester
9769 W. 119th Dr. Ste. 12
Broomfield, CO, 80021
303-438-9338
KEITH.WOOD@COLOSTATE.EDU
Colorado is in Zones 2-7
Tree City USA Communities in Colorado: 91
document Download a state summary
| City | Years | Population |
|---|---|---|
| Denver | 32 | 682454 |
| Colorado Springs | 41 | 473984 |
| Aurora | 34 | 345867 |
| see complete list | ||