Letter from the State Secretary of Security and Justice to asylum seekers State Secretary Dijkhoff (Security and Justice) informs asylum seekers who enter the Netherlands, about what they can expect here. 20-10-2015 | 13:11.
Some aspen colonies become very large with time, spreading about 1 m (3.3 ft) per year, eventually covering many hectares. They are able to survive forest fires, because the roots are below the heat of the fire, with new sprouts growing after the fire burns out. Aspens do not thrive in the shade, and it is difficult for seedlings to grow in an already mature aspen stand. Fire indirectly benefits aspen trees, since it allows the saplings to flourish in open sunlight in the burned landscape.
Colorado blue spruce, also called blue spruce (Picea pungens) grows at a slow to medium rate of less than 12 inches per year and up to 24 inches per year when young. It can take 35 to 50 years for a Colorado blue spruce to grow 30 to 50 feet.