Colorado state is way too cold for growing palm trees. Colorado is made up of mountains, foothills, high plains, and desert lands. It has semi-arid and alpine climate climate depending on the elevations.
Extreme weather is very common for Colorado. Winters are very cold and snowy with average temperatures ranging from 16° to 43°F (–9° to 6°C) in January. Summers are cool and dry with average temperatures ranging from 59° to 88°F (15° to 31°C) in July. The highest temperature recorded in Colorado was 118 °F (48 °C) an the lowest was −60 °F (−51 °C).
Colorado gets hail storms, thunderstorms and tornadoes. Colorado USDA Hardiness zones range from 2b to 6b.
Colorado USDA Zones
Growing Palm Trees in Colorado
Colorado is one of the coldest states in US. Because of the extreme weather conditions, even the cold hardiest palm trees are unlikely to survive. Needle palm is one of the hardiest palms and can tolerate temperatures down to -15F. If you can create a microclimate with temperatures warm enough, you can grow palms anywhere. But be realistic.
- Needle Palm Tree – Zones 5b-11 (-15 to -10F)
Major Cities in Colorado
Arvada – Hardiness Zone 6a
Aurora – Hardiness Zone 5b
Boulder – Hardiness Zone 5b
Colorado Springs – Hardiness Zone 5b
Denver – Hardiness Zone 6a
Fort Collins – Hardiness Zone 4b
Grand Junction – Hardiness Zone 5b
Lakewood – Hardiness Zone 6a
Littleton – Hardiness Zone 5b
Pueblo – Hardiness Zone 5b