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( Bhutan Pine )
|Pinus wallichiana grows from 70 to 120 feet in height, spread is a third that. Needles are gray-green in clusters of five. Growth habit is graceful, with branches feathering to the ground in maturity. Cones are 6 to 10 inches long, solitary, held erect when young, pendulous at maturity, very resinous. Somewhat difficult to transplant, so should be sited in a permanent location before it reaches 3 feet tall. Dislikes shallow, chalky soils; similar to White Pine in its requirements. Somewhat pollution tolerant, prefers a sheltered location. Native to Himalayas.
Pines are one of the most diverse groups of evergreen conifers, over 90 species are distributed throughout the Northern Hemisphere. Although most are large trees, they can take a low growing shrub form. Pines have been very important commercially, in timber production, as well as a variety of other manufactured products such as turpentine, and rosin. They tend to be more tolerant of varying soil types and urban environments than either Picea or Abies. Pines tend to develop tap roots, so one should not attempt to transplant them from the wild. All species are grown from seed, with highly variable seed stratification requirements. They can be subject to many diseases, such as damping off, root rot, dieback, blister rust, canker, blight, scale, pine needle miner, pine weevil, bark beetles and pinewood nematode. Well situated plants should be relatively trouble free.
They suffer salt damage along highways, and can get tip burn in areas of high sulfur dioxide or ozone.
Important Info : Also called Pinus chylla, Pinus excelsa, and Pinus griffithii.
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