There are a lot of conifers that grow well in Colorado. Colorado Spruce (Picea pungens) is in the pine family, and probably the most popular here in Colorado.
They grow to between 40-60’ in height and have a spread of around 25’.
Scotch Pine (Pinus sylvestris), obviously in the pine family with a height of 30-80’ and a spread of around 30’.
The trunk is usually crooked with an irregular spreading crown. The bark is orange-brown with needles 1 ½-3” long that are stiff and twisted to a point.
Ponderosa Pine (Pinus ponderosa) is in the pine family and has a height of 50-70’ and a spread of 25’.
This pine tree doesn’t taper very much and loses its lower branches as it matures. The bark is reddish-brown with large, long black furrows and some scales. Ponderosa grow in a variety of soils and prefer full sun.