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.
The size and growth rate of pine trees varies greatly depending on the species, with some species of dwarf pine reaching a maximum height of 4 feet while white pines may grow to 100 feet or higher.ifficulties with Pine Trees in Landscaping. Though they do not shed their needles the same way deciduous trees lose their leaves every fall, it is common for a layer of pine needles to form on the ground beneath pine trees.