The Blue Spruce (Picea pungens) is a medium-sized evergreen tree. This species reaches heights from 65-115 feet at maturity and are often used for Christmas trees. Their needles are silvery blue to a ...

These trees (Picea pungens) are native to the mountainous ... so the most common spruce tree is difficult to ascertain. However, the Colorado blue spruce may be the tree most likely to find ...

Submit a sample to the UMN Plant Disease Clinic for testing. Colorado blue spruce (Picea pungens) is highly susceptible and is commonly affected. White spruce (P. glauca, including Black Hills spruce) ...