Poplar trees are part of the genus Populus L. Poplar trees generally have a rapid growth rate that begins in the spring and ends in the summer. Poplar tree growth rates are affected by a variety of factors including soil fertility, annual rainfall, soil pH and temperature.
Balsam poplar trees grow quickly throughout their life cycle and reach up to 80 feet on average. At 20 years of age balsam poplar trees can reach up to 35 feet in height. Although annual growth rates are dependent on growing conditions balsam poplars can grow 2 feet in a single year.
The rapid growth rate of the white poplar allows it to reach heights of up to 80 feet over a 20-year period. On average these trees reach a maximum height of 100 feet above the ground with roots at least 2 feet deep.
One of the larger forms of poplar tree, the Lombardy poplar can grow up to 190 feet tall. Over a period of 20 years this species of poplar can grow up to 80 feet in height. The roots of the Lombardy poplar grow to a minimum of 32 inches in depth.
The Carolina poplar is another rapidly growing species of poplar tree that grows up to 80 feet in height over a 20-year period. It has a maximum average height of 110 feet and a minimum root depth of 2 feet.
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