Spruce

Spruce can grow to a height of 50–70 feet and a diameter of 6–12 inches, but is nor- mally smaller than the maximum size. On a good site, it will grow rapidly. In sphagnum bogs, trees 50–80 years old may be only 6–8 feet tall and about one inch in diameter.

The average life span of most of the spruce trees is about 150-200 years. But the blue spruce may have a maximum life span of about 600 to 800 years. A spruce tree survives typically long in the wild environment, but if they are grown at home, their health starts degrading after 40 to 60 years.