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botanical name:
Pinus monticola
Pinus monticola © Deeproot Plant Base
common name:  Western White Pine, Idaho White Pine
synonyms:  Strobus monticola
family:  Pinaceae
characteristics: conifer, evergreen
height: 50.00m
width: 10.00m
growth rate: fast
growth habit: conical
leaf colour: green
flower colour: yellow
fruit colour: light brown
stem/bark: dark grey
main season: All Year
aspect: full sun
conditions: dry soil, moist soil, sandy soil
preferred soil pH: neutral-acid
minimum temp: -35°C
USDA zone: 4 to 8
description:
Tall growing evergreen usually with a straight trunk and narrowly conical habit. Needle-like leaves up to 13cm long, held in groups of 5. Male stroboli are yellow and female pinkish green, developing into large narrow cones up to about 30cm long, taking 2 years to mature before releasing the winged seeds. The mature bark is grey and becomes fissured into square plates.

cultivation:
Grows best in moist, well drained sandy, somewhat acidic soils. Will tolerate poor soils and a wide range of climatic conditions.

Very susceptible to white pine blister rust (Cronartium ribicola), which has had a devastating effect of some native populations.

propagation:
By seed.

usage:
Ornamental speciman tree for parkland.
Valuable timber tree.

other notes:
Native to the Rocky Mountains of North America.

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