Pinus koraiensis 'Morris Blue' / Morris Blue Korean pine
Pinus koraiensis 'Morris Blue' is an upright, dwarf, tree-form of Korean pine with nice conical form, dense branching and long, silvery blue-green needles. After 10 years of growth, a mature specimen will measure 6 feet (1.8 m) tall and 40 inches (1 m) wide, an annual growth rate of 6 to 8 inches.
This cultivar originated as a seedling selected in the early 1930s by the Morris Arboretum, Philadelphia, Pennsylvania, USA. 'Morris Blue' is one of eight selections made in 2020 for the popular ACS Collectors' Conifer of the Year program.
Pinus koraiensis 'Morris Blue' — a 2019 photo of a specimen planted in 2008 at the Morris Arboretum, this cultivar's originating grounds. Note the fencing, used to deter both deer browsing and, more importantly, "buck rubbing" in late summer / early fall.
Photo by Katherine Wagner-Reiss
Pinus koraiensis 'Morris Blue' at Bickelhaupt Arboretum, Clinton, Iowa, in the Heartland Collection of Garden Conifers. Photo from late October of 2005.
Photo by Dax Herbst