Tree Detail

Pinus aristata


Pine, Bristlecone

Pinus aristata   

Category: evergreen tree   Size: small

Mature Size: 20-30' x 15-20'

Zone: 2   Growth Rate: very slow

Foliage: 5 needles per group, blue-green, 1 to 1.5"

Elevation (if known): To 10,000'

Water: Is found in dry, rocky soils at high altitude -- needs seasonal water

Soil : OK in poor, rocky soils

Sun: Full

Comments: The oldest trees in Colorado are more than 500 years old on the flanks of Pikes Peak. One of the 5 pines native to Colorado. Grows naturally on poor, rocky sites. Tolerant of wind.

Warnings: Does not tolerate air pollution.

Alamosa Tree Board Recommended? yes

Street Tree? no   Street Tree Conditions:

CO/NM native? yes   Native to: W Mountain US states

Known Locations:

Information Sources: Alamosa Tree Board; Gymnosperm database(