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.
On a perfect weather year, and no competition from grass or weeds, we have seen over 6 ft of growth in one year! This spruce if given sufficient room to grow will easily grow to over 100 feet tall and be 40 feet wide with spreading branches at the base and will live over 100 years.he Norway Spruce is also a dominant tree in the Carpathian Mountains of Romania and Ukraine shown above. IDENTIFICATION First stand back--if this evergreen is a tree that is 20 foot tall or larger it should have a dark. green color with pendulous (arching upward) branches.