Poplar trees are part of the genus Populus L. They 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 24 metres (80 feet) on average. At 20 years of age balsam poplar trees can reach up to 11 metres (35 feet) in height. Although annual growth rates are dependent on growing conditions balsam poplars can grow 60 cm (2 feet) in a single year.
The rapid growth rate of the white poplar allows it to reach heights of up to 24 metres (80 feet) over a 20-year period. On average these trees reach a maximum height of 30 metres (100 feet) above the ground.
One of the larger forms of poplar tree, the Lombardy poplar can grow up to 58 metres (190 feet) tall. Over a period of 20 years this species of poplar can grow up to 24 metres (80 feet) in height. The roots of the Lombardy poplar grow to a minimum of 80 cm (32 inches) in depth.
The Carolina poplar is another rapidly growing species of poplar tree that grows up to 24 metres (80 feet) in height over a 20-year period. It has a maximum average height of 33.5 metres (110 feet).
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