Pinus pumila 'Glauca' is a broadly upright, irregular, slow-growing, bushy selection of Siberian stone pine with upswept branching and attractive gray-blue foliage. After 10 years of growth, a mature specimen will measure 4 feet (1.2 m) tall and 3 feet (90 cm) wide, an annual growth rate of 4 to 6 inches (10 - 15 cm).
This is a relatively old cultivar to the nursery trade of unknown origin. It's earliest references are seen in an undated catalog by P.J.C. Oosthoek & Co., The Netherlands and a text written by Hugo Hooftman in 1943.
Pinus pumila 'Glauca' at Hidden Lake Gardens, Tipton, Michigan, July 2016.
Photo by William Dunagin
Pinus pumila 'Glauca' — a closeup of foliage and pollen cone detail.
Photo by Ellen Smart
Pinus pumila `Glauca' — notice the number of large, bright-red inflorescences on this nice young plant.
Photo by John Fertig
Pinus pumila 'Glauca,' labeled as 'Dwarf Blue' at Hidden Lake Gardens, Tipton, Michigan in the Harper Collection of Dwarf & Rare Conifers, August 2005.
Photo by Dax Herbst
Pinus pumila 'Glauca' growing in Maine in 2013. Plant was about two feet wide when purchased in 2006. Breaks easily from snow load, we protect it every winter.
Photo by Wynne Keller