Rocky Mountain Bristlecone Pine (Pinus aristata)

Rocky Mountain Bristlecone Pine

Also known as: Hickory Pine

Rocky Mountain Bristlecone Pine (Pinus aristata) is one of three closely related species known collectively as bristlecone pines. In 1992 a rocky Mountain Bristlecone Pine estimated to be 2,480 years old was discovered on Black Mountain in Colorado. “Aristata” in the Latin name means “prickliness.”

Scientific classification

Species

Rocky Mountain Bristlecone Pine (Pinus aristata)

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2.5 m to 6 m

Plant Height

3 m to 4.5 m

Spread

Green, Blue

Leaf Color

2.5 cm

Flower Size

Brown, Copper

Fruit Color

Yellow, Green, Red

Flower Color

Evergreen

Leaf type

15 - 35 ℃

Ideal Temperature

Slow

Growth Rate

Images of Rocky Mountain Bristlecone Pine

Attributes of Rocky Mountain Bristlecone Pine

Growth Rate

Exhibiting a slow growth rate, rocky Mountain Bristlecone Pine invests substantially in morphological adaptations during Spring and Summer. The slow rate, closely associated with a stress-tolerant lifestyle, allows rocky Mountain Bristlecone Pine to endure harsh Mountain conditions and achieve an impressive lifespan. Observable growth includes bark thickening and needle production, reflecting a strategy of resilience over rapid expansion.

Quickly Identify Rocky Mountain Bristlecone Pine

Compact, irregular growth forming round or flat shape.

Blue-green needles with resinous coating and distinct aroma.

Female flowers develop into woody cones, reddish-purple.

Tough, bristly cones with light brown color and armored scales.

Bluish-green needles in bundles of five, with white resin dots.

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Care Guide for Rocky Mountain Bristlecone Pine

Every 2 weeks

Water

Full sun

Sunlight

15 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Adapted to high-altitude conditions, rocky Mountain Bristlecone Pine is drought-tolerant and thrives with minimal moisture. It requires watering every two weeks, reflecting its natural dry climate. Its needle-like leaves minimize water loss, enhancing its resilience against drought.

Fertilize: Fertilize rocky Mountain Bristlecone Pine annually in late winter to early spring using balanced nutrition fertilizers to support growth. Apply moderate amounts tailored to rocky Mountain Bristlecone Pine's life stage, with younger plants needing more frequent feeding. Always water after fertilization and adhere to product guidelines for optimal care.

Pruning: Prune rocky Mountain Bristlecone Pine in early to late winter to promote growth and reduce stress. Focus on removing dead branches and thinning overcrowded areas for airflow. Avoid excessive pruning to maintain its natural form. Use sharp, sterilized tools to prevent infections and enhance disease resistance.

Propagation: Rocky Mountain Bristlecone Pine is a slow-growing, long-lived conifer that thrives when propagated from seeds through stratification to break dormancy. Seeds should be planted in well-draining soil with proper moisture. While germination requires patience, this method supports the conservation of this resilient species.

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