Picea pungens, or Colorado spruce, is a native to North American evergreen known for its striking silvery-blue foliage and symmetrical shape. Native to Arizona, Colorado, Idaho, New Mexico, Utah and Wyoming. Thriving in full sun and acidic, well-drained soils, it�s a hardy tree that tolerates some alkaline soils and is drought-tolerant once mature. However, young trees need consistent moisture, especially during establishment. While blue spruce excels in cooler climates, it may struggle in hot, humid conditions, becoming susceptible to pests like spider mites, spruce budworm, and diseases such as cankers and needle cast. Proper spacing and good airflow help reduce these issues.