Quaking aspen trees are able to grow to impressive heights of over 70 feet. The trunk will reach a diameter of one to nearly three feet. The largest recorded quaking aspen tree was just under 120 feet in height and over four feet in diameter. Young trees will grow at least two feet per year, but some individuals may grow five or more feet per year. Quaking aspens planted in ideal conditions can live for more than 100 years.