Pinus jeffreyi – Jeffrey-pine

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Pinaceae

Pinus jeffreyi – Jeffrey-pine

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Large tree with a semi-closed conical crown, flattening out somewhat when mature. Moderately fast-growing, with horizontal branching. In its natural site, the tree can grow to approx. 50 m in height. The bark is blackish brown, later grooved with loose plates and turning purplish brown. When cut, the smooth twigs, glossy when mature, smell like oranges. The twisted needles are fairly stiff, erect and pointy. They are approx. 18 cm long, a striking greyish blue colour and grow in bundles of 3 together. Crushed needles have a characteristic petroleum odour. When fully ripe, the purplish brown cones fall off. Pinus jeffreyi is suited to any type of soil and adapts well. Although the tree grows on dry, rocky mountain slopes in its natural habitat, it thrives best on permeable, light and moisture-retentive soil.

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Specifications
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Height
20 - 25 (50) m
Crown
broad conical, later rounded, half-open crown
Bark and branches
blackish brown bark, grooved, orange-brown to green twigs, later black
Leaf
needles, 3 together, bluish green, twisted, 12 - 22 cm, evergreen
Flowers
unremarkable, fragrant flowers
Fruits
hanging, pointed cone, 14 - 26 cm, purplish brown
Spines/thorns
None
Toxicity
usually not toxic to people, (large) pets and livestock
Soil type
all
Paving
tolerates no paving
Winter hardiness zone
6b (-20,5 to -17,8 °C)
Wind resistance
good
Other resistances
resistant to frost (WH 1 - 6), can withstand wind
Application
industrial areas
Shape
clearstem tree, specimen conifer
Origin
western North America
Clear stem tree Specimen conifer acid soil clay soil loamy soil peaty soil sandy soil tolerates no paving light-loving resistant to frost (WH 1 - 6) can withstand wind broad conical 1st size , taller than 12 metres half-open crown bluegreen green yellow average growing non-toxic (usually) Ornamental fruit Fragrant flowers
Frequently asked questions
Pinus jeffreyi

Pinus jeffreyi can eventually reach a height of 20 - 25 (50) m, depending on the site and climate conditions.

Pinus jeffreyi is average growing and can eventually reach a height of 20 - 25 (50) m, depending on the site and climate conditions.

The right time to plant Pinus jeffreyi is during the dormancy period. In Western Europe, Pinus jeffreyi with root balls can generally be planted from mid-November to late April, although this depends strongly on the climatic conditions and the species of tree.

Pinus jeffreyi blooms in may.
General