This is an uncommon 5 needle pine with attractive smooth bark. Whitebark Pine attracts many different wildlife species and if grown in lower elevations it can attain commercial dimensions.
|USDA Hardiness Zone
|3 - 5
|Canadian Hardiness Zone
|1a - 6a
|RHS Hardiness Zone
|-40 - (-26)
|-40 - (-15)
|10 - 25 m
|Slow growing long lived tree.
|Use as a shade tree, windbreak or an accent tree.
|White bark pine has a rapidly spreading, broad rounded to irregular crown.
|Needles in fascicles of 5 with globular cones and very distinctive scaly, brown, plated bark on older trees.
|White Pine Blister Rust and Mountain Pine Beetle . The plant is considered a species at risk in part due to the above but also because fire and climate change.
|The mountains of the Western United States and Canada found growing at the treeline.
|Young growth has thin, smooth chalky white bark, while the bark on older trees is comprised of scaly brown plates.
|Flower/Leaf Bud Description
|Ovoid, light red-brown 0.8-1 cm.
|The needles are 3 -9 cm long in fasicals of 5, slightly curved, stiff blueish-green in colour and clumped near the end of the branches.
|Female strobili and cones form at the ends of the branches, while the red male strobili and pollen form throughout the crown on the current year's growth.
|3-8 cm, globular, cones that grow 90° to the branches. The cones remain closed, seeds are released when the cone decays. Seeds are 1 cm long.
|Leaves are blueish-green, whitish grey bark, and dark purple juvenile cones turning brown as they age. Buds are redish brown.
|Jasper National Park, Jasper, Alberta, Canada.
|Stratify seeds by soaking in water for 1 - 2 days then place in a moist medium at 1 - 5 °C for 90 to 120 days.
|Ethnobotanical Uses (Disclaimer)
|The wood has limited use from natural plantations since it is derived from twisted , short trunks. Where it is grown in commercial plantations the wood may be harvested for lumber.