An example of dia used as a prefix is in the word diagnosis, which means a thorough analysis of a disease. dia- through, throughout, across: diachronic, diagram
Blue spruce evergreen trees (Picea pungens) grow wild in Western North America in U.S. Department of Agriculture plant hardiness zones 3 through 8. This erect tree produces blue-green evergreen needles that are sharp to the touch. Blue spruces reach 30 to 65 feet tall, spreading 10 to 20 feet wide. With good care this slow-growing tree can grow up to 12 inches per year. Blue spruce trees grow well as showcase trees or as part of a windbreak. Examine the location of the blue spruce tree while it is still young enough to transplant.
World's Largest Spruce Tree. Lake Quinault is the Valley of the Rain Forest Giants and the Big Spruce Tree at the Resort is one of them. The tree is the Worlds Largest Spruce with a circumference of 58 feet, 11 inches, diameter of 18 feet, 9 inches and 191 feet tall for a total of 922 AFA points. A very large tree near Seaside, Oregon claimed to be the United States largest spruce tree, it has 902 AFA points.