Tsuga mertensiana 'Glacier Peak' is a relatively fast growing, irregular upright selection of Mountain hemlock with short, stout branches and attractive grayish Blue needles, densely radiating about the stems. According to Iseli nursery, the general effect in the garden is a rugged, yet tufty appearance. After 10 years of growth, a mature specimen will measure 10 feet (3 m) tall and 8 feet (2.5 m) wide, an annual growth rate of 6 to 8 inches (15 - 20 cm).
This cultivar originated as a seedling selected by Iseli nursery of Boring, Oregon, who named it in honor of the glacier-capped Cascade mountains of Washington and Oregon.
