The Crow’s Path Blog

A major advantage of being a conifer is being able to photosynthesize in the late fall and early spring, well after the deciduous trees have all shed their leaves. Some conifers, like white pines, only keep their needles for 2 growing seasons, while others hold onto their needles for well over a decade. In the last post we looked at how to estimate the age of twig. In this post, we'll use that information to estimate the age of a conifer's needles (needle longevity)!