Blue spruce (Picea pungens) is a large evergreen tree that is native to the western United States. It is commonly used as an ornamental tree in gardens and parks due to its striking blue-green needles.
The bark of blue spruce is thick, scaly, and grayish-brown in color. It becomes furrowed and develops deep ridges as the tree matures.
The needles of blue spruce are stiff and sharply pointed, and are typically about 2.5 cm (1 inch) in length. They are arranged in a spiral pattern around the twig and are a unique blue-green color that sets this tree apart from other spruce species.
The cones of blue spruce are large and cylindrical, typically measuring 10-20 cm (4-8 inches) in length. They are usually light brown in color and are often coated in a sticky resin.
Blue spruce is well adapted to cold, dry climates and can tolerate a wide range of soil types. It is a slow-growing tree that can live for several hundred years.
In addition to its use as an ornamental tree, blue spruce is also used for timber, pulpwood, and as a Christmas tree. It is an important species for wildlife, providing habitat and food for a variety of animals such as squirrels, deer, and birds.
Overall, the blue spruce is a beautiful and hardy tree that is valued for its unique color and adaptability to harsh environments.