Jeffrey pine (Pinus jeffreyi)

Jeffrey pine

Also known as: Bull Pine, Yellow pine

Jeffrey pine is a tall, long-lived North American conifer, distributed throughout California, in southwestern Oregon, western Nevada, and northern Baja California. When broken or crushed, the bark and twigs of jeffrey pine release a sweet, vanilla-like scent. Pinus jeffreyi is one of the primary hosts of dwarf mistletoe (Arceuthobium spp.), which can cause severe damage to jeffrey pine seedlings.

Scientific classification

Species

Jeffrey pine (Pinus jeffreyi)

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Perennial

Lifespan

Tree

Plant Type

Green, Gray, Silver

Leaf Color

Brown, Copper

Fruit Color

Green, Gray, Silver, Brown

Stem Color

Evergreen

Leaf type

5 - 32 ℃

Ideal Temperature

Spring, Summer

Growth Season

Images of Jeffrey pine

Attributes of Jeffrey pine

Growth Rate

During the active growing seasons of Spring and Summer, jeffrey pine demonstrates a rapid growth rate. This expedited growth leads to a notable increase in its height and leaf production. Specifically, the vibrant, needle-like leaves exhibit considerable expansion in quantity and size. Flowering, relatively rare, may also be observed. This rapid growth rate tends to slow down in other seasons, resulting in a seasonal fluctuation in its manifestation.

Distribution of Jeffrey pine

Distribution Map

The plant jeffrey pine, a species of pine, is naturally found in the mountainous regions of western North America. It has been introduced to similar habitats in other temperate zones where it is now cultivated, expanding its presence beyond its original range.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Dry slopes

Hemisphere Trend Curve

Northern

Sorthern

Culture

Symbolism

Hope, Pity

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Quickly Identify Jeffrey pine

Long, twisted needles in groups of three, emitting a pleasant aroma when crushed.

Bark with deep furrows and orange-brown hue, distinctive from similar species.

Large cones with barbed, incurved prickles on scales for identification.

Needles measuring 7-11 inches (18-28 cm) with blue-green color and fine stomatal lines.

Thick, cinnamon-brown bark with deep furrows exuding scents of lemon, vanilla, or pineapple.

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Care Guide for Jeffrey pine

Every 1-2 weeks

Water

Full sun

Sunlight

5 - 32 ℃

Ideal Temperature

Water: Jeffrey pine thrives in mountainous, arid habitats, showing significant drought tolerance. It requires watering every 1-2 weeks, allowing soil to dry between sessions. As an evergreen, jeffrey pine features needle-like leaves that minimize water loss, exemplifying adaptation to low-water environments.

Fertilize: To care for jeffrey pine, apply balanced nutrition fertilizers annually in spring with a slow-release formula. Tailor amounts based on jeffrey pine's size and age, avoiding over-fertilization. Water thoroughly after application to enhance nutrient absorption, supporting growth and resilience against environmental stresses.

Pruning: Jeffrey pine thrives with careful pruning during dormancy, ideally from early to late winter. Focus on removing dead or diseased branches while avoiding excessive pruning to reduce stress. Regular pruning enhances air circulation, mitigates pest problems, and promotes healthy, attractive growth.

Propagation: Jeffrey pine is a tall conifer known for its distinctive bark. Propagation through seed sowing is effective, requiring well-draining soil and stratification. Monitoring moisture is crucial for successful germination, and seedlings should be protected from harsh environmental conditions.

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