How high can a pine tree grow?

A height of 268.35 feet (81.79 meters) is considered among the maximum known heights for a pine tree (Pinusspp).

Specifically, that figure is on record for the specific example of a Ponderosa Pine (P. ponderosa) in the Rogue River-Siskiyou National Forest of Oregon. The mature height of pine trees actually may range from 9.84 to 262.467 feet (3 - 80 meters). Whether or not the expectation is reached will depend upon the species and environmental conditions.