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(www.conifers.org)